56242380 has 24 divisors (see below), whose sum is σ = 157478832. Its totient is φ = 14997952.

The previous prime is 56242369. The next prime is 56242387. The reversal of 56242380 is 8324265.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (56242387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468627 + ... + 468746.

It is an arithmetic number, because the mean of its divisors is an integer number (6561618).

Almost surely, 2^56242380 is an apocalyptic number.

It is an amenable number.

56242380 is an abundant number, since it is smaller than the sum of its proper divisors (101236452).

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

56242380 is a wasteful number, since it uses less digits than its factorization.

56242380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937385 (or 937383 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 56242380 is about 7499.4919827946. The cubic root of 56242380 is about 383.1374138514.

The spelling of 56242380 in words is "fifty-six million, two hundred forty-two thousand, three hundred eighty".