56408140 has 12 divisors (see below), whose sum is σ = 118457136. Its totient is φ = 22563248.

The previous prime is 56408137. The next prime is 56408141. The reversal of 56408140 is 4180465.

56408140 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 = 56408099 and 56408108.

It is not an unprimeable number, because it can be changed into a prime (56408141) 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 3 ways as a sum of consecutive naturals, for example, 1410184 + ... + 1410223.

It is an arithmetic number, because the mean of its divisors is an integer number (9871428).

Almost surely, 2^56408140 is an apocalyptic number.

It is an amenable number.

56408140 is an abundant number, since it is smaller than the sum of its proper divisors (62048996).

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

56408140 is a wasteful number, since it uses less digits than its factorization.

56408140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820416 (or 2820414 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 56408140 is about 7510.5352672097. The cubic root of 56408140 is about 383.5134444511.

The spelling of 56408140 in words is "fifty-six million, four hundred eight thousand, one hundred forty".