68943264 has 48 divisors (see below), whose sum is σ = 194900832. Its totient is φ = 21212928.

The previous prime is 68943241. The next prime is 68943269. The reversal of 68943264 is 46234986.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (68943269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26374 + ... + 28869.

It is an arithmetic number, because the mean of its divisors is an integer number (4060434).

Almost surely, 2^68943264 is an apocalyptic number.

It is an amenable number.

68943264 is an abundant number, since it is smaller than the sum of its proper divisors (125957568).

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

68943264 is a wasteful number, since it uses less digits than its factorization.

68943264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55269 (or 55261 counting only the distinct ones).

The product of its digits is 248832, while the sum is 42.

The square root of 68943264 is about 8303.2080547220. The cubic root of 68943264 is about 410.0441435714.

The spelling of 68943264 in words is "sixty-eight million, nine hundred forty-three thousand, two hundred sixty-four".