56206440 has 128 divisors (see below), whose sum is σ = 190252800. Its totient is φ = 14757120.

The previous prime is 56206433. The next prime is 56206453. The reversal of 56206440 is 4460265.

It is a happy number.

56206440 is a `hidden beast` number, since 562 + 0 + 64 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76314 + ... + 77046.

It is an arithmetic number, because the mean of its divisors is an integer number (1486350).

Almost surely, 2^56206440 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 56206440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95126400).

56206440 is an abundant number, since it is smaller than the sum of its proper divisors (134046360).

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

56206440 is a wasteful number, since it uses less digits than its factorization.

56206440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 56206440 is about 7497.0954375678. The cubic root of 56206440 is about 383.0557856510.

The spelling of 56206440 in words is "fifty-six million, two hundred six thousand, four hundred forty".