231374646 has 12 divisors (see below), whose sum is σ = 501311772. Its totient is φ = 77124876.

The previous prime is 231374629. The next prime is 231374657. The reversal of 231374646 is 646473132.

It is a happy number.

231374646 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 7 + 4 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 231374646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6427056 + ... + 6427091.

It is an arithmetic number, because the mean of its divisors is an integer number (41775981).

Almost surely, 2^231374646 is an apocalyptic number.

231374646 is an abundant number, since it is smaller than the sum of its proper divisors (269937126).

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

231374646 is a wasteful number, since it uses less digits than its factorization.

231374646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12854155 (or 12854152 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 231374646 is about 15211.0041088680. The cubic root of 231374646 is about 613.9107747706.

The spelling of 231374646 in words is "two hundred thirty-one million, three hundred seventy-four thousand, six hundred forty-six".