231026404 has 24 divisors (see below), whose sum is σ = 464457728. Its totient is φ = 98496000.

The previous prime is 231026399. The next prime is 231026423. The reversal of 231026404 is 404620132.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15972 + ... + 26779.

Almost surely, 2^231026404 is an apocalyptic number.

It is an amenable number.

231026404 is an abundant number, since it is smaller than the sum of its proper divisors (233431324).

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

231026404 is a wasteful number, since it uses less digits than its factorization.

231026404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42955 (or 42953 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 231026404 is about 15199.5527565781. The cubic root of 231026404 is about 613.6026210645.

Adding to 231026404 its reverse (404620132), we get a palindrome (635646536).

The spelling of 231026404 in words is "two hundred thirty-one million, twenty-six thousand, four hundred four".