56440426 has 16 divisors (see below), whose sum is σ = 96923520. Its totient is φ = 24146640.

The previous prime is 56440421. The next prime is 56440427. The reversal of 56440426 is 62404465.

It is a super-2 number, since 2×56440426² = 6371043374122952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56440421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5640 + ... + 12028.

It is an arithmetic number, because the mean of its divisors is an integer number (6057720).

Almost surely, 2^56440426 is an apocalyptic number.

56440426 is a deficient number, since it is larger than the sum of its proper divisors (40483094).

56440426 is a wasteful number, since it uses less digits than its factorization.

56440426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7029.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 56440426 is about 7512.6843405004. The cubic root of 56440426 is about 383.5866002844.

The spelling of 56440426 in words is "fifty-six million, four hundred forty thousand, four hundred twenty-six".