231899604 has 12 divisors (see below), whose sum is σ = 541099104. Its totient is φ = 77299864.

The previous prime is 231899537. The next prime is 231899621. The reversal of 231899604 is 406998132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9662472 + ... + 9662495.

It is an arithmetic number, because the mean of its divisors is an integer number (45091592).

Almost surely, 2^231899604 is an apocalyptic number.

It is an amenable number.

231899604 is an abundant number, since it is smaller than the sum of its proper divisors (309199500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231899604 is a wasteful number, since it uses less digits than its factorization.

231899604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19324974 (or 19324972 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 231899604 is about 15228.2501949502. The cubic root of 231899604 is about 614.3747177741.

The spelling of 231899604 in words is "two hundred thirty-one million, eight hundred ninety-nine thousand, six hundred four".