231660460 has 12 divisors (see below), whose sum is σ = 486487008. Its totient is φ = 92664176.

The previous prime is 231660421. The next prime is 231660461. The reversal of 231660460 is 64066132.

It is not an unprimeable number, because it can be changed into a prime (231660461) 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, 5791492 + ... + 5791531.

It is an arithmetic number, because the mean of its divisors is an integer number (40540584).

Almost surely, 2^231660460 is an apocalyptic number.

231660460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231660460 is an abundant number, since it is smaller than the sum of its proper divisors (254826548).

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

231660460 is a wasteful number, since it uses less digits than its factorization.

231660460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11583032 (or 11583030 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 231660460 is about 15220.3961840683. The cubic root of 231660460 is about 614.1634560060.

The spelling of 231660460 in words is "two hundred thirty-one million, six hundred sixty thousand, four hundred sixty".