231766330 has 16 divisors (see below), whose sum is σ = 417573000. Its totient is φ = 92619072.

The previous prime is 231766309. The next prime is 231766357. The reversal of 231766330 is 33667132.

It can be written as a sum of positive squares in 4 ways, for example, as 55487601 + 176278729 = 7449^2 + 13277^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231766292 and 231766301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796 + ... + 21544.

Almost surely, 2^231766330 is an apocalyptic number.

231766330 is a deficient number, since it is larger than the sum of its proper divisors (185806670).

231766330 is a wasteful number, since it uses less digits than its factorization.

231766330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21873.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 231766330 is about 15223.8736857608. The cubic root of 231766330 is about 614.2570003576.

The spelling of 231766330 in words is "two hundred thirty-one million, seven hundred sixty-six thousand, three hundred thirty".