28582120 has 32 divisors (see below), whose sum is σ = 73497600. Its totient is φ = 9799488.

The previous prime is 28582109. The next prime is 28582159. The reversal of 28582120 is 2128582.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50760 + ... + 51319.

It is an arithmetic number, because the mean of its divisors is an integer number (2296800).

Almost surely, 2^28582120 is an apocalyptic number.

28582120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28582120 is an abundant number, since it is smaller than the sum of its proper divisors (44915480).

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

28582120 is a wasteful number, since it uses less digits than its factorization.

28582120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102097 (or 102093 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 28582120 is about 5346.2248362747. The cubic root of 28582120 is about 305.7488362932.

The spelling of 28582120 in words is "twenty-eight million, five hundred eighty-two thousand, one hundred twenty".