28542544 has 20 divisors (see below), whose sum is σ = 55442880. Its totient is φ = 14234720.

The previous prime is 28542539. The next prime is 28542551. The reversal of 28542544 is 44524582.

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 in 3 ways as a sum of consecutive naturals, for example, 4827 + ... + 8965.

It is an arithmetic number, because the mean of its divisors is an integer number (2772144).

Almost surely, 2^28542544 is an apocalyptic number.

It is an amenable number.

28542544 is a deficient number, since it is larger than the sum of its proper divisors (26900336).

28542544 is a wasteful number, since it uses less digits than its factorization.

28542544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4578 (or 4572 counting only the distinct ones).

The product of its digits is 51200, while the sum is 34.

The square root of 28542544 is about 5342.5222507726. The cubic root of 28542544 is about 305.6076535642.

The spelling of 28542544 in words is "twenty-eight million, five hundred forty-two thousand, five hundred forty-four".