56240740 has 24 divisors (see below), whose sum is σ = 121299192. Its totient is φ = 21888000.

The previous prime is 56240711. The next prime is 56240753. The reversal of 56240740 is 4704265.

It can be written as a sum of positive squares in 4 ways, for example, as 21288996 + 34951744 = 4614^2 + 5912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56240699 and 56240708.

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, 37261 + ... + 38740.

It is an arithmetic number, because the mean of its divisors is an integer number (5054133).

Almost surely, 2^56240740 is an apocalyptic number.

It is an amenable number.

56240740 is an abundant number, since it is smaller than the sum of its proper divisors (65058452).

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

56240740 is a wasteful number, since it uses less digits than its factorization.

56240740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76047 (or 76045 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 56240740 is about 7499.3826412579. The cubic root of 56240740 is about 383.1336897827.

The spelling of 56240740 in words is "fifty-six million, two hundred forty thousand, seven hundred forty".