68943744 has 64 divisors (see below), whose sum is σ = 203490000. Its totient is φ = 22980096.

The previous prime is 68943739. The next prime is 68943773. The reversal of 68943744 is 44734986.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 68943744.

It is a congruent number.

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, 6519 + ... + 13430.

Almost surely, 2^68943744 is an apocalyptic number.

68943744 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68943744 is an abundant number, since it is smaller than the sum of its proper divisors (134546256).

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

68943744 is a wasteful number, since it uses less digits than its factorization.

68943744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19972 (or 19954 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 68943744 is about 8303.2369591624. The cubic root of 68943744 is about 410.0450951787.

The spelling of 68943744 in words is "sixty-eight million, nine hundred forty-three thousand, seven hundred forty-four".