231464466 has 20 divisors (see below), whose sum is σ = 518652222. Its totient is φ = 77154768.

The previous prime is 231464449. The next prime is 231464483. The reversal of 231464466 is 664464132.

231464466 is a `hidden beast` number, since 2 + 3 + 1 + 4 + 644 + 6 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (231464449) and next prime (231464483).

It can be written as a sum of positive squares in only one way, i.e., 177662241 + 53802225 = 13329^2 + 7335^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231464466.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 714235 + ... + 714558.

Almost surely, 2^231464466 is an apocalyptic number.

231464466 is an abundant number, since it is smaller than the sum of its proper divisors (287187756).

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

231464466 is a wasteful number, since it uses less digits than its factorization.

231464466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428807 (or 1428798 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 231464466 is about 15213.9562901962. The cubic root of 231464466 is about 613.9902048680.

The spelling of 231464466 in words is "two hundred thirty-one million, four hundred sixty-four thousand, four hundred sixty-six".