2545644 has 24 divisors (see below), whose sum is σ = 5967808. Its totient is φ = 844560.

The previous prime is 2545633. The next prime is 2545651. The reversal of 2545644 is 4465452.

2545644 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3339 + ... + 4029.

2^2545644 is an apocalyptic number.

It is an amenable number.

2545644 is an abundant number, since it is smaller than the sum of its proper divisors (3422164).

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

2545644 is a wasteful number, since it uses less digits than its factorization.

2545644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005 (or 1003 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 2545644 is about 1595.5074427905. The cubic root of 2545644 is about 136.5418835901.

The spelling of 2545644 in words is "two million, five hundred forty-five thousand, six hundred forty-four".