4568257440 has 120 divisors (see below), whose sum is σ = 16122187620. Its totient is φ = 1218198528.

The previous prime is 4568257439. The next prime is 4568257513. The reversal of 4568257440 is 447528654.

It can be written as a sum of positive squares in 2 ways, for example, as 4297589136 + 270668304 = 65556^2 + 16452^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 163285 + ... + 189204.

Almost surely, 2^4568257440 is an apocalyptic number.

4568257440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4568257440 is an abundant number, since it is smaller than the sum of its proper divisors (11553930180).

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

4568257440 is a wasteful number, since it uses less digits than its factorization.

4568257440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352516 (or 352499 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 45.

The square root of 4568257440 is about 67588.8854768297. The cubic root of 4568257440 is about 1659.2692191498.

The spelling of 4568257440 in words is "four billion, five hundred sixty-eight million, two hundred fifty-seven thousand, four hundred forty".