56818940 has 24 divisors (see below), whose sum is σ = 119660352. Its totient is φ = 22662720.

The previous prime is 56818919. The next prime is 56818961. The reversal of 56818940 is 4981865.

It is an interprime number because it is at equal distance from previous prime (56818919) and next prime (56818961).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3470 + ... + 11210.

It is an arithmetic number, because the mean of its divisors is an integer number (4985848).

Almost surely, 2^56818940 is an apocalyptic number.

It is an amenable number.

56818940 is an abundant number, since it is smaller than the sum of its proper divisors (62841412).

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

56818940 is a wasteful number, since it uses less digits than its factorization.

56818940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8117 (or 8115 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 56818940 is about 7537.8339063686. The cubic root of 56818940 is about 384.4421898980.

The spelling of 56818940 in words is "fifty-six million, eight hundred eighteen thousand, nine hundred forty".