56694240 has 72 divisors (see below), whose sum is σ = 193474008. Its totient is φ = 15118080.

The previous prime is 56694227. The next prime is 56694251. The reversal of 56694240 is 4249665.

56694240 is a `hidden beast` number, since 566 + 94 + 2 + 4 + 0 = 666.

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 a junction number, because it is equal to n+sod(n) for n = 56694195 and 56694204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18246 + ... + 21125.

It is an arithmetic number, because the mean of its divisors is an integer number (2687139).

Almost surely, 2^56694240 is an apocalyptic number.

It is an amenable number.

56694240 is an abundant number, since it is smaller than the sum of its proper divisors (136779768).

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

56694240 is a wasteful number, since it uses less digits than its factorization.

56694240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39392 (or 39381 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 56694240 is about 7529.5577559376. The cubic root of 56694240 is about 384.1607399975.

The spelling of 56694240 in words is "fifty-six million, six hundred ninety-four thousand, two hundred forty".