56458240 has 44 divisors (see below), whose sum is σ = 135445896. Its totient is φ = 22581248.

The previous prime is 56458187. The next prime is 56458267. The reversal of 56458240 is 4285465.

It is a junction number, because it is equal to n+sod(n) for n = 56458196 and 56458205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394 + ... + 10633.

Almost surely, 2^56458240 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 56458240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67722948).

56458240 is an abundant number, since it is smaller than the sum of its proper divisors (78987656).

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

56458240 is a wasteful number, since it uses less digits than its factorization.

56458240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11052 (or 11034 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 56458240 is about 7513.8698418325. The cubic root of 56458240 is about 383.6269525248.

The spelling of 56458240 in words is "fifty-six million, four hundred fifty-eight thousand, two hundred forty".