68682144 has 24 divisors (see below), whose sum is σ = 180290880. Its totient is φ = 22894016.

The previous prime is 68682139. The next prime is 68682161. The reversal of 68682144 is 44128686.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

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, 357624 + ... + 357815.

It is an arithmetic number, because the mean of its divisors is an integer number (7512120).

Almost surely, 2^68682144 is an apocalyptic number.

It is an amenable number.

68682144 is an abundant number, since it is smaller than the sum of its proper divisors (111608736).

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

68682144 is a wasteful number, since it uses less digits than its factorization.

68682144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715452 (or 715444 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 68682144 is about 8287.4690949650. The cubic root of 68682144 is about 409.5258130818.

The spelling of 68682144 in words is "sixty-eight million, six hundred eighty-two thousand, one hundred forty-four".