68455232 has 28 divisors (see below), whose sum is σ = 136167876. Its totient is φ = 34145280.

The previous prime is 68455213. The next prime is 68455249. The reversal of 68455232 is 23255486.

It can be written as a sum of positive squares in 2 ways, for example, as 27290176 + 41165056 = 5224^2 + 6416^2 .

It is a super-2 number, since 2×68455232² = 9372237576347648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68455192 and 68455201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32318 + ... + 34370.

Almost surely, 2^68455232 is an apocalyptic number.

It is an amenable number.

68455232 is a deficient number, since it is larger than the sum of its proper divisors (67712644).

68455232 is a wasteful number, since it uses less digits than its factorization.

68455232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586 (or 2576 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 68455232 is about 8273.7677028063. The cubic root of 68455232 is about 409.0743185071.

The spelling of 68455232 in words is "sixty-eight million, four hundred fifty-five thousand, two hundred thirty-two".