28982580 has 48 divisors (see below), whose sum is σ = 88530624. Its totient is φ = 7025920.

The previous prime is 28982567. The next prime is 28982623. The reversal of 28982580 is 8528982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21297 + ... + 22616.

It is an arithmetic number, because the mean of its divisors is an integer number (1844388).

Almost surely, 2^28982580 is an apocalyptic number.

28982580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28982580 is an abundant number, since it is smaller than the sum of its proper divisors (59548044).

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

28982580 is a wasteful number, since it uses less digits than its factorization.

28982580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43936 (or 43934 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 28982580 is about 5383.5471577762. The cubic root of 28982580 is about 307.1701532825.

The spelling of 28982580 in words is "twenty-eight million, nine hundred eighty-two thousand, five hundred eighty".