Sudabeh is from the Persian سودابه — sud (good fortune, profit) + Persian feminine ending. Sudabeh is one of the characters in the Shahnameh (Book of Kings) by Ferdowsi (c.
Sudabeh does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
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In Pythagorean numerology the letters of Sudabeh reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.