56738840 has 32 divisors (see below), whose sum is σ = 128100960. Its totient is φ = 22617600.

The previous prime is 56738821. The next prime is 56738863. The reversal of 56738840 is 4883765.

It is a happy number.

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, 10160 + ... + 14720.

It is an arithmetic number, because the mean of its divisors is an integer number (4003155).

Almost surely, 2^56738840 is an apocalyptic number.

It is an amenable number.

56738840 is an abundant number, since it is smaller than the sum of its proper divisors (71362120).

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

56738840 is a wasteful number, since it uses less digits than its factorization.

56738840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4883 (or 4879 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 56738840 is about 7532.5188350246. The cubic root of 56738840 is about 384.2614502761.

The spelling of 56738840 in words is "fifty-six million, seven hundred thirty-eight thousand, eight hundred forty".