56435240 has 64 divisors (see below), whose sum is σ = 135594000. Its totient is φ = 21065728.

The previous prime is 56435233. The next prime is 56435287. The reversal of 56435240 is 4253465.

It can be written as a sum of positive squares in 8 ways, for example, as 8631844 + 47803396 = 2938^2 + 6914^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101042 + ... + 101598.

Almost surely, 2^56435240 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 56435240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67797000).

56435240 is an abundant number, since it is smaller than the sum of its proper divisors (79158760).

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

56435240 is a wasteful number, since it uses less digits than its factorization.

56435240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 56435240 is about 7512.3391829709. The cubic root of 56435240 is about 383.5748513710.

The spelling of 56435240 in words is "fifty-six million, four hundred thirty-five thousand, two hundred forty".