204662631 has 16 divisors (see below), whose sum is σ = 275097600. Its totient is φ = 135340128.

The previous prime is 204662629. The next prime is 204662641. The reversal of 204662631 is 136266402.

It is not a de Polignac number, because 204662631 - 2¹ = 204662629 is a prime.

It is a super-2 number, since 2×204662631² = 83773585055684322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204662621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284290 + ... + 285008.

It is an arithmetic number, because the mean of its divisors is an integer number (17193600).

Almost surely, 2^204662631 is an apocalyptic number.

204662631 is a deficient number, since it is larger than the sum of its proper divisors (70434969).

204662631 is a wasteful number, since it uses less digits than its factorization.

204662631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 204662631 is about 14306.0347755764. The cubic root of 204662631 is about 589.3132207945.

The spelling of 204662631 in words is "two hundred four million, six hundred sixty-two thousand, six hundred thirty-one".