28325044 has 12 divisors (see below), whose sum is σ = 54075168. Its totient is φ = 12875000.

The previous prime is 28325027. The next prime is 28325053. The reversal of 28325044 is 44052382.

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, 321832 + ... + 321919.

It is an arithmetic number, because the mean of its divisors is an integer number (4506264).

Almost surely, 2^28325044 is an apocalyptic number.

It is an amenable number.

28325044 is a deficient number, since it is larger than the sum of its proper divisors (25750124).

28325044 is a wasteful number, since it uses less digits than its factorization.

28325044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643766 (or 643764 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 28325044 is about 5322.1277699807. The cubic root of 28325044 is about 304.8294092174.

The spelling of 28325044 in words is "twenty-eight million, three hundred twenty-five thousand, forty-four".