68931360 has 72 divisors (see below), whose sum is σ = 235233180. Its totient is φ = 18381312.

The previous prime is 68931353. The next prime is 68931367. The reversal of 68931360 is 6313986.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68931353) and next prime (68931367).

It can be written as a sum of positive squares in 2 ways, for example, as 68359824 + 571536 = 8268^2 + 756^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68931367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22495 + ... + 25374.

Almost surely, 2^68931360 is an apocalyptic number.

68931360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68931360 is an abundant number, since it is smaller than the sum of its proper divisors (166301820).

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

68931360 is a wasteful number, since it uses less digits than its factorization.

68931360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47890 (or 47879 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 68931360 is about 8302.4911924073. The cubic root of 68931360 is about 410.0205422981.

The spelling of 68931360 in words is "sixty-eight million, nine hundred thirty-one thousand, three hundred sixty".