231404204 has 12 divisors (see below), whose sum is σ = 428778504. Its totient is φ = 108896064.

The previous prime is 231404197. The next prime is 231404207. The reversal of 231404204 is 402404132.

231404204 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231404207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701434 + ... + 1701569.

It is an arithmetic number, because the mean of its divisors is an integer number (35731542).

Almost surely, 2^231404204 is an apocalyptic number.

It is an amenable number.

231404204 is a deficient number, since it is larger than the sum of its proper divisors (197374300).

231404204 is a wasteful number, since it uses less digits than its factorization.

231404204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403024 (or 3403022 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 231404204 is about 15211.9756770776. The cubic root of 231404204 is about 613.9369159265.

Adding to 231404204 its reverse (402404132), we get a palindrome (633808336).

The spelling of 231404204 in words is "two hundred thirty-one million, four hundred four thousand, two hundred four".