2645624 has 8 divisors (see below), whose sum is σ = 4960560. Its totient is φ = 1322808.

The previous prime is 2645603. The next prime is 2645639. The reversal of 2645624 is 4265462.

2645624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 165344 + ... + 165359.

It is an arithmetic number, because the mean of its divisors is an integer number (620070).

2^2645624 is an apocalyptic number.

It is an amenable number.

2645624 is a deficient number, since it is larger than the sum of its proper divisors (2314936).

2645624 is a wasteful number, since it uses less digits than its factorization.

2645624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330709 (or 330705 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 2645624 is about 1626.5374265599. The cubic root of 2645624 is about 138.3065369622.

The spelling of 2645624 in words is "two million, six hundred forty-five thousand, six hundred twenty-four".