2522644 has 12 divisors (see below), whose sum is σ = 4426324. Its totient is φ = 1257984.

The previous prime is 2522633. The next prime is 2522657. The reversal of 2522644 is 4462252.

2522644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2496400 + 26244 = 1580^2 + 162^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1762 + ... + 2854.

2^2522644 is an apocalyptic number.

It is an amenable number.

2522644 is a deficient number, since it is larger than the sum of its proper divisors (1903680).

2522644 is a wasteful number, since it uses less digits than its factorization.

2522644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1672 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 2522644 is about 1588.2833500355. The cubic root of 2522644 is about 136.1294183283.

Adding to 2522644 its reverse (4462252), we get a palindrome (6984896).

The spelling of 2522644 in words is "two million, five hundred twenty-two thousand, six hundred forty-four".