56972740 has 24 divisors (see below), whose sum is σ = 130519872. Its totient is φ = 20717280.

The previous prime is 56972737. The next prime is 56972749. The reversal of 56972740 is 4727965.

56972740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 56972693 and 56972702.

It is not an unprimeable number, because it can be changed into a prime (56972749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129264 + ... + 129703.

It is an arithmetic number, because the mean of its divisors is an integer number (5438328).

Almost surely, 2^56972740 is an apocalyptic number.

It is an amenable number.

56972740 is an abundant number, since it is smaller than the sum of its proper divisors (73547132).

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

56972740 is a wasteful number, since it uses less digits than its factorization.

56972740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258987 (or 258985 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 56972740 is about 7548.0288817677. The cubic root of 56972740 is about 384.7887523853.

The spelling of 56972740 in words is "fifty-six million, nine hundred seventy-two thousand, seven hundred forty".