204464631 has 8 divisors (see below), whose sum is σ = 311565184. Its totient is φ = 116836920.

The previous prime is 204464629. The next prime is 204464639. The reversal of 204464631 is 136464402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204464631 - 2¹ = 204464629 is a prime.

It is a super-2 number, since 2×204464631² = 83611570659932322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204464639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4868185 + ... + 4868226.

It is an arithmetic number, because the mean of its divisors is an integer number (38945648).

Almost surely, 2^204464631 is an apocalyptic number.

204464631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

204464631 is a deficient number, since it is larger than the sum of its proper divisors (107100553).

204464631 is an equidigital number, since it uses as much as digits as its factorization.

204464631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9736421.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 204464631 is about 14299.1129445151. The cubic root of 204464631 is about 589.1231166120.

The spelling of 204464631 in words is "two hundred four million, four hundred sixty-four thousand, six hundred thirty-one".