56438436 has 48 divisors (see below), whose sum is σ = 146784960. Its totient is φ = 16773120.

The previous prime is 56438413. The next prime is 56438443. The reversal of 56438436 is 63483465.

It is a junction number, because it is equal to n+sod(n) for n = 56438394 and 56438403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3405 + ... + 11156.

It is an arithmetic number, because the mean of its divisors is an integer number (3058020).

Almost surely, 2^56438436 is an apocalyptic number.

It is an amenable number.

56438436 is an abundant number, since it is smaller than the sum of its proper divisors (90346524).

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

56438436 is a wasteful number, since it uses less digits than its factorization.

56438436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14604 (or 14602 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 56438436 is about 7512.5518966594. The cubic root of 56438436 is about 383.5820920129.

The spelling of 56438436 in words is "fifty-six million, four hundred thirty-eight thousand, four hundred thirty-six".