28572168 has 16 divisors (see below), whose sum is σ = 71430480. Its totient is φ = 9524048.

The previous prime is 28572157. The next prime is 28572191. The reversal of 28572168 is 86127582.

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 3 ways as a sum of consecutive naturals, for example, 595230 + ... + 595277.

It is an arithmetic number, because the mean of its divisors is an integer number (4464405).

Almost surely, 2^28572168 is an apocalyptic number.

It is an amenable number.

28572168 is an abundant number, since it is smaller than the sum of its proper divisors (42858312).

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

28572168 is a wasteful number, since it uses less digits than its factorization.

28572168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190516 (or 1190512 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 28572168 is about 5345.2940050104. The cubic root of 28572168 is about 305.7133459745.

The spelling of 28572168 in words is "twenty-eight million, five hundred seventy-two thousand, one hundred sixty-eight".