28485924 has 24 divisors (see below), whose sum is σ = 66668448. Its totient is φ = 9466560.

The previous prime is 28485911. The next prime is 28485953. The reversal of 28485924 is 42958482.

It is a super-2 number, since 2×28485924² = 1622895732267552, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744 + ... + 7584.

It is an arithmetic number, because the mean of its divisors is an integer number (2777852).

Almost surely, 2^28485924 is an apocalyptic number.

It is an amenable number.

28485924 is an abundant number, since it is smaller than the sum of its proper divisors (38182524).

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

28485924 is a wasteful number, since it uses less digits than its factorization.

28485924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7195 (or 7193 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 28485924 is about 5337.2206250070. The cubic root of 28485924 is about 305.4054412730.

The spelling of 28485924 in words is "twenty-eight million, four hundred eighty-five thousand, nine hundred twenty-four".