56440832 has 96 divisors (see below), whose sum is σ = 134184960. Its totient is φ = 23224320.

The previous prime is 56440829. The next prime is 56440837. The reversal of 56440832 is 23804465.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56440837) 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, 444353 + ... + 444479.

It is an arithmetic number, because the mean of its divisors is an integer number (1397760).

Almost surely, 2^56440832 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 56440832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67092480).

56440832 is an abundant number, since it is smaller than the sum of its proper divisors (77744128).

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

56440832 is a wasteful number, since it uses less digits than its factorization.

56440832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 56440832 is about 7512.7113614194. The cubic root of 56440832 is about 383.5875200494.

The spelling of 56440832 in words is "fifty-six million, four hundred forty thousand, eight hundred thirty-two".