231890792 has 32 divisors (see below), whose sum is σ = 497404800. Its totient is φ = 99282624.

The previous prime is 231890783. The next prime is 231890887. The reversal of 231890792 is 297098132.

It is a happy number.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 94493 + ... + 96915.

It is an arithmetic number, because the mean of its divisors is an integer number (15543900).

Almost surely, 2^231890792 is an apocalyptic number.

It is an amenable number.

231890792 is an abundant number, since it is smaller than the sum of its proper divisors (265514008).

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

231890792 is a wasteful number, since it uses less digits than its factorization.

231890792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4145 (or 4141 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 231890792 is about 15227.9608615205. The cubic root of 231890792 is about 614.3669357591.

The spelling of 231890792 in words is "two hundred thirty-one million, eight hundred ninety thousand, seven hundred ninety-two".