2544428 has 6 divisors (see below), whose sum is σ = 4452756. Its totient is φ = 1272212.

The previous prime is 2544403. The next prime is 2544457. The reversal of 2544428 is 8244452.

2544428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2544428² = 12948227694368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2544428.

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, 318050 + ... + 318057.

It is an arithmetic number, because the mean of its divisors is an integer number (742126).

2^2544428 is an apocalyptic number.

It is an amenable number.

2544428 is a deficient number, since it is larger than the sum of its proper divisors (1908328).

2544428 is a wasteful number, since it uses less digits than its factorization.

2544428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636111 (or 636109 counting only the distinct ones).

The product of its digits is 10240, while the sum is 29.

The square root of 2544428 is about 1595.1263272857. The cubic root of 2544428 is about 136.5201390762.

The spelling of 2544428 in words is "two million, five hundred forty-four thousand, four hundred twenty-eight".