56224440 has 96 divisors (see below), whose sum is σ = 193499280. Its totient is φ = 14109696.

The previous prime is 56224433. The next prime is 56224453. The reversal of 56224440 is 4442265.

It is a super-2 number, since 2×56224440² = 6322375306627200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1527 + ... + 10713.

Almost surely, 2^56224440 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 56224440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96749640).

56224440 is an abundant number, since it is smaller than the sum of its proper divisors (137274840).

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

56224440 is a wasteful number, since it uses less digits than its factorization.

56224440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9221 (or 9214 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 56224440 is about 7498.2958063816. The cubic root of 56224440 is about 383.0966722365.

The spelling of 56224440 in words is "fifty-six million, two hundred twenty-four thousand, four hundred forty".