28488024 has 40 divisors (see below), whose sum is σ = 79794660. Its totient is φ = 9495792.

The previous prime is 28488023. The next prime is 28488041. The reversal of 28488024 is 42088482.

It is a super-2 number, since 2×28488024² = 1623135022849152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28488024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28488023) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 21334 + ... + 22629.

Almost surely, 2^28488024 is an apocalyptic number.

28488024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28488024 is an abundant number, since it is smaller than the sum of its proper divisors (51306636).

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

28488024 is a wasteful number, since it uses less digits than its factorization.

28488024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43981 (or 43968 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The square root of 28488024 is about 5337.4173529901. The cubic root of 28488024 is about 305.4129459814.

The spelling of 28488024 in words is "twenty-eight million, four hundred eighty-eight thousand, twenty-four".