204246631 has 16 divisors (see below), whose sum is σ = 217571328. Its totient is φ = 191433600.

The previous prime is 204246583. The next prime is 204246641. The reversal of 204246631 is 136642402.

204246631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 204246631 - 2²⁵ = 170692199 is a prime.

It is a super-2 number, since 2×204246631² = 83433372549700322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204246631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204246641) 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, 149391 + ... + 150751.

It is an arithmetic number, because the mean of its divisors is an integer number (13598208).

Almost surely, 2^204246631 is an apocalyptic number.

204246631 is a deficient number, since it is larger than the sum of its proper divisors (13324697).

204246631 is a wasteful number, since it uses less digits than its factorization.

204246631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 204246631 is about 14291.4880610803. The cubic root of 204246631 is about 588.9136679828.

The spelling of 204246631 in words is "two hundred four million, two hundred forty-six thousand, six hundred thirty-one".