56909740 has 24 divisors (see below), whose sum is σ = 120016512. Its totient is φ = 22667520.

The previous prime is 56909719. The next prime is 56909747. The reversal of 56909740 is 4790965.

It is a junction number, because it is equal to n+sod(n) for n = 56909693 and 56909702.

It is not an unprimeable number, because it can be changed into a prime (56909747) 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, 1084 + ... + 10723.

It is an arithmetic number, because the mean of its divisors is an integer number (5000688).

Almost surely, 2^56909740 is an apocalyptic number.

It is an amenable number.

56909740 is an abundant number, since it is smaller than the sum of its proper divisors (63106772).

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

56909740 is a wasteful number, since it uses less digits than its factorization.

56909740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12057 (or 12055 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 56909740 is about 7543.8544524666. The cubic root of 56909740 is about 384.6468679664.

The spelling of 56909740 in words is "fifty-six million, nine hundred nine thousand, seven hundred forty".