28330544 has 20 divisors (see below), whose sum is σ = 59880840. Its totient is φ = 12877440.

The previous prime is 28330537. The next prime is 28330573. The reversal of 28330544 is 44503382.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80309 + ... + 80660.

It is an arithmetic number, because the mean of its divisors is an integer number (2994042).

Almost surely, 2^28330544 is an apocalyptic number.

It is an amenable number.

28330544 is an abundant number, since it is smaller than the sum of its proper divisors (31550296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28330544 is a wasteful number, since it uses less digits than its factorization.

28330544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160988 (or 160982 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 28330544 is about 5322.6444555315. The cubic root of 28330544 is about 304.8491379687.

The spelling of 28330544 in words is "twenty-eight million, three hundred thirty thousand, five hundred forty-four".