2520456 has 16 divisors (see below), whose sum is σ = 6301200. Its totient is φ = 840144.

The previous prime is 2520451. The next prime is 2520457. The reversal of 2520456 is 6540252.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 105019 = 2520456 / (2 + 5 + 2 + 0 + 4 + 5 + 6).

It is not an unprimeable number, because it can be changed into a prime (2520451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52486 + ... + 52533.

It is an arithmetic number, because the mean of its divisors is an integer number (393825).

2^2520456 is an apocalyptic number.

It is an amenable number.

2520456 is an abundant number, since it is smaller than the sum of its proper divisors (3780744).

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

2520456 is a wasteful number, since it uses less digits than its factorization.

2520456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105028 (or 105024 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2520456 is about 1587.5944066417. The cubic root of 2520456 is about 136.0900499351.

The spelling of 2520456 in words is "two million, five hundred twenty thousand, four hundred fifty-six".