56240040 has 32 divisors (see below), whose sum is σ = 168720480. Its totient is φ = 14997312.

The previous prime is 56240027. The next prime is 56240047. The reversal of 56240040 is 4004265.

It is a happy number.

56240040 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 = 56239989 and 56240016.

It is not an unprimeable number, because it can be changed into a prime (56240047) 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, 234214 + ... + 234453.

It is an arithmetic number, because the mean of its divisors is an integer number (5272515).

Almost surely, 2^56240040 is an apocalyptic number.

It is an amenable number.

56240040 is an abundant number, since it is smaller than the sum of its proper divisors (112480440).

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

56240040 is a wasteful number, since it uses less digits than its factorization.

56240040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468681 (or 468677 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 56240040 is about 7499.3359706043. The cubic root of 56240040 is about 383.1321002191.

The spelling of 56240040 in words is "fifty-six million, two hundred forty thousand, forty".