28024580 has 24 divisors (see below), whose sum is σ = 61411392. Its totient is φ = 10722272.

The previous prime is 28024567. The next prime is 28024613. The reversal of 28024580 is 8542082.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30002 + ... + 30921.

It is an arithmetic number, because the mean of its divisors is an integer number (2558808).

Almost surely, 2^28024580 is an apocalyptic number.

28024580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28024580 is an abundant number, since it is smaller than the sum of its proper divisors (33386812).

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

28024580 is a wasteful number, since it uses less digits than its factorization.

28024580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60955 (or 60953 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 28024580 is about 5293.8247043135. The cubic root of 28024580 is about 303.7477275765.

The spelling of 28024580 in words is "twenty-eight million, twenty-four thousand, five hundred eighty".