231616330 has 64 divisors (see below), whose sum is σ = 498286080. Its totient is φ = 76518400.

The previous prime is 231616321. The next prime is 231616349. The reversal of 231616330 is 33616132.

It is a super-2 number, since 2×231616330² = 107292248645337800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231616295 and 231616304.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52095 + ... + 56365.

It is an arithmetic number, because the mean of its divisors is an integer number (7785720).

Almost surely, 2^231616330 is an apocalyptic number.

231616330 is an abundant number, since it is smaller than the sum of its proper divisors (266669750).

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

231616330 is a wasteful number, since it uses less digits than its factorization.

231616330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4335.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 231616330 is about 15218.9464155703. The cubic root of 231616330 is about 614.1244553144.

The spelling of 231616330 in words is "two hundred thirty-one million, six hundred sixteen thousand, three hundred thirty".