28080544 has 24 divisors (see below), whose sum is σ = 57068928. Its totient is φ = 13586880.

The previous prime is 28080527. The next prime is 28080551. The reversal of 28080544 is 44508082.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 13162 + ... + 15145.

It is an arithmetic number, because the mean of its divisors is an integer number (2377872).

Almost surely, 2^28080544 is an apocalyptic number.

It is an amenable number.

28080544 is an abundant number, since it is smaller than the sum of its proper divisors (28988384).

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

28080544 is a wasteful number, since it uses less digits than its factorization.

28080544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28348 (or 28340 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 28080544 is about 5299.1078494403. The cubic root of 28080544 is about 303.9497839493.

The spelling of 28080544 in words is "twenty-eight million, eighty thousand, five hundred forty-four".