2556470 has 32 divisors (see below), whose sum is σ = 5356800. Its totient is φ = 860256.

The previous prime is 2556467. The next prime is 2556487. The reversal of 2556470 is 746552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3821 + ... + 4439.

It is an arithmetic number, because the mean of its divisors is an integer number (167400).

2^2556470 is an apocalyptic number.

2556470 is an abundant number, since it is smaller than the sum of its proper divisors (2800330).

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

2556470 is a wasteful number, since it uses less digits than its factorization.

2556470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 2556470 is about 1598.8964944611. The cubic root of 2556470 is about 136.7351695708.

The spelling of 2556470 in words is "two million, five hundred fifty-six thousand, four hundred seventy".