56434728 has 64 divisors (see below), whose sum is σ = 161948160. Its totient is φ = 16053696.

The previous prime is 56434727. The next prime is 56434751. The reversal of 56434728 is 82743465.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (56434723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46951 + ... + 48137.

It is an arithmetic number, because the mean of its divisors is an integer number (2530440).

Almost surely, 2^56434728 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 56434728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80974080).

56434728 is an abundant number, since it is smaller than the sum of its proper divisors (105513432).

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

56434728 is a wasteful number, since it uses less digits than its factorization.

56434728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486 (or 1482 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 56434728 is about 7512.3051056250. The cubic root of 56434728 is about 383.5736913929.

The spelling of 56434728 in words is "fifty-six million, four hundred thirty-four thousand, seven hundred twenty-eight".