231405676 has 12 divisors (see below), whose sum is σ = 405086920. Its totient is φ = 115666560.

The previous prime is 231405667. The next prime is 231405677. The reversal of 231405676 is 676504132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (231405677) 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, 9511 + ... + 23521.

Almost surely, 2^231405676 is an apocalyptic number.

It is an amenable number.

231405676 is a deficient number, since it is larger than the sum of its proper divisors (173681244).

231405676 is a wasteful number, since it uses less digits than its factorization.

231405676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18144 (or 18142 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 231405676 is about 15212.0240599336. The cubic root of 231405676 is about 613.9382177081.

It can be divided in two parts, 2314056 and 76, that added together give a palindrome (2314132).

The spelling of 231405676 in words is "two hundred thirty-one million, four hundred five thousand, six hundred seventy-six".