28485588 has 24 divisors (see below), whose sum is σ = 66955392. Its totient is φ = 9425344.

The previous prime is 28485581. The next prime is 28485593. The reversal of 28485588 is 88558482.

It is a happy number.

It is a super-2 number, since 2×28485588² = 1622857447411488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28485581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7020 + ... + 10307.

It is an arithmetic number, because the mean of its divisors is an integer number (2789808).

Almost surely, 2^28485588 is an apocalyptic number.

It is an amenable number.

28485588 is an abundant number, since it is smaller than the sum of its proper divisors (38469804).

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

28485588 is a wasteful number, since it uses less digits than its factorization.

28485588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17471 (or 17469 counting only the distinct ones).

The product of its digits is 819200, while the sum is 48.

The square root of 28485588 is about 5337.1891478568. The cubic root of 28485588 is about 305.4042404854.

The spelling of 28485588 in words is "twenty-eight million, four hundred eighty-five thousand, five hundred eighty-eight".