56242740 has 24 divisors (see below), whose sum is σ = 157479840. Its totient is φ = 14998048.

The previous prime is 56242733. The next prime is 56242741. The reversal of 56242740 is 4724265.

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

It is a junction number, because it is equal to n+sod(n) for n = 56242698 and 56242707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56242741) 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, 468630 + ... + 468749.

It is an arithmetic number, because the mean of its divisors is an integer number (6561660).

Almost surely, 2^56242740 is an apocalyptic number.

It is an amenable number.

56242740 is an abundant number, since it is smaller than the sum of its proper divisors (101237100).

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

56242740 is a wasteful number, since it uses less digits than its factorization.

56242740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937391 (or 937389 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 56242740 is about 7499.5159843819. The cubic root of 56242740 is about 383.1382313202.

The spelling of 56242740 in words is "fifty-six million, two hundred forty-two thousand, seven hundred forty".