205972430 has 16 divisors (see below), whose sum is σ = 371392560. Its totient is φ = 82246272.

The previous prime is 205972423. The next prime is 205972453. The reversal of 205972430 is 34279502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11675 + ... + 23414.

It is an arithmetic number, because the mean of its divisors is an integer number (23212035).

Almost surely, 2^205972430 is an apocalyptic number.

205972430 is a deficient number, since it is larger than the sum of its proper divisors (165420130).

205972430 is a wasteful number, since it uses less digits than its factorization.

205972430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35683.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 205972430 is about 14351.7396158096. The cubic root of 205972430 is about 590.5677098113.

The spelling of 205972430 in words is "two hundred five million, nine hundred seventy-two thousand, four hundred thirty".