56741840 has 20 divisors (see below), whose sum is σ = 131924964. Its totient is φ = 22696704.

The previous prime is 56741837. The next prime is 56741843. The reversal of 56741840 is 4814765.

It is an interprime number because it is at equal distance from previous prime (56741837) and next prime (56741843).

It can be written as a sum of positive squares in 2 ways, for example, as 19678096 + 37063744 = 4436^2 + 6088^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 56741840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56741843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354557 + ... + 354716.

Almost surely, 2^56741840 is an apocalyptic number.

It is an amenable number.

56741840 is an abundant number, since it is smaller than the sum of its proper divisors (75183124).

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

56741840 is a wasteful number, since it uses less digits than its factorization.

56741840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709286 (or 709280 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 56741840 is about 7532.7179689671. The cubic root of 56741840 is about 384.2682226154.

The spelling of 56741840 in words is "fifty-six million, seven hundred forty-one thousand, eight hundred forty".