231840892 has 12 divisors (see below), whose sum is σ = 407645896. Its totient is φ = 115370640.

The previous prime is 231840887. The next prime is 231840893. The reversal of 231840892 is 298048132.

231840892 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231840893) 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, 136503 + ... + 138190.

Almost surely, 2^231840892 is an apocalyptic number.

It is an amenable number.

231840892 is a deficient number, since it is larger than the sum of its proper divisors (175805004).

231840892 is a wasteful number, since it uses less digits than its factorization.

231840892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274908 (or 274906 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 231840892 is about 15226.3223399480. The cubic root of 231840892 is about 614.3228645692.

The spelling of 231840892 in words is "two hundred thirty-one million, eight hundred forty thousand, eight hundred ninety-two".