56438070 has 64 divisors (see below), whose sum is σ = 149022720. Its totient is φ = 13592448.

The previous prime is 56438033. The next prime is 56438077. The reversal of 56438070 is 7083465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56438077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16791 + ... + 19869.

It is an arithmetic number, because the mean of its divisors is an integer number (2328480).

Almost surely, 2^56438070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56438070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74511360).

56438070 is an abundant number, since it is smaller than the sum of its proper divisors (92584650).

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

56438070 is a wasteful number, since it uses less digits than its factorization.

56438070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 56438070 is about 7512.5275373871. The cubic root of 56438070 is about 383.5812628418.

The spelling of 56438070 in words is "fifty-six million, four hundred thirty-eight thousand, seventy".