2544728 has 24 divisors (see below), whose sum is σ = 4945140. Its totient is φ = 1227600.

The previous prime is 2544691. The next prime is 2544733. The reversal of 2544728 is 8274452.

It is a junction number, because it is equal to n+sod(n) for n = 2544694 and 2544703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7523 + ... + 7853.

2^2544728 is an apocalyptic number.

It is an amenable number.

2544728 is a deficient number, since it is larger than the sum of its proper divisors (2400412).

2544728 is a wasteful number, since it uses less digits than its factorization.

2544728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 364 counting only the distinct ones).

The product of its digits is 17920, while the sum is 32.

The square root of 2544728 is about 1595.2203609533. The cubic root of 2544728 is about 136.5255043203.

The spelling of 2544728 in words is "two million, five hundred forty-four thousand, seven hundred twenty-eight".