2564374 has 4 divisors (see below), whose sum is σ = 3846564. Its totient is φ = 1282186.

The previous prime is 2564369. The next prime is 2564381. The reversal of 2564374 is 4734652.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641092 + ... + 641095.

It is an arithmetic number, because the mean of its divisors is an integer number (961641).

2^2564374 is an apocalyptic number.

2564374 is a deficient number, since it is larger than the sum of its proper divisors (1282190).

2564374 is a wasteful number, since it uses less digits than its factorization.

2564374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282189.

The product of its digits is 20160, while the sum is 31.

The square root of 2564374 is about 1601.3662916397. The cubic root of 2564374 is about 136.8759421827.

The spelling of 2564374 in words is "two million, five hundred sixty-four thousand, three hundred seventy-four".