2544939 has 14 divisors (see below), whose sum is σ = 3816756. Its totient is φ = 1696140.

The previous prime is 2544931. The next prime is 2544943. The reversal of 2544939 is 9394452.

It is not a de Polignac number, because 2544939 - 2³ = 2544931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2544931) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1017 + ... + 2474.

2^2544939 is an apocalyptic number.

2544939 is a deficient number, since it is larger than the sum of its proper divisors (1271817).

2544939 is an frugal number, since it uses more digits than its factorization.

2544939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509 (or 3494 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 2544939 is about 1595.2864946460. The cubic root of 2544939 is about 136.5292776228.

The spelling of 2544939 in words is "two million, five hundred forty-four thousand, nine hundred thirty-nine".