56920240 has 80 divisors (see below), whose sum is σ = 143740800. Its totient is φ = 20837376.

The previous prime is 56920229. The next prime is 56920249. The reversal of 56920240 is 4202965.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 56920199 and 56920208.

It is not an unprimeable number, because it can be changed into a prime (56920249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238041 + ... + 238279.

It is an arithmetic number, because the mean of its divisors is an integer number (1796760).

Almost surely, 2^56920240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56920240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71870400).

56920240 is an abundant number, since it is smaller than the sum of its proper divisors (86820560).

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

56920240 is a wasteful number, since it uses less digits than its factorization.

56920240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 56920240 is about 7544.5503510812. The cubic root of 56920240 is about 384.6705226387.

The spelling of 56920240 in words is "fifty-six million, nine hundred twenty thousand, two hundred forty".