2568456 has 128 divisors (see below), whose sum is σ = 8294400. Its totient is φ = 728640.

The previous prime is 2568431. The next prime is 2568457. The reversal of 2568456 is 6548652.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (57600) is a multiple of the sum of its prime factors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 2568456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2568457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54625 + ... + 54671.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2^2568456 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 2568456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4147200).

2568456 is an abundant number, since it is smaller than the sum of its proper divisors (5725944).

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

2568456 is a wasteful number, since it uses less digits than its factorization.

2568456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 86 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 2568456 is about 1602.6403214695. The cubic root of 2568456 is about 136.9485305798.

The spelling of 2568456 in words is "two million, five hundred sixty-eight thousand, four hundred fifty-six".