28504092 has 12 divisors (see below), whose sum is σ = 66509576. Its totient is φ = 9501360.

The previous prime is 28504081. The next prime is 28504111. The reversal of 28504092 is 29040582.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187659 + ... + 1187682.

Almost surely, 2^28504092 is an apocalyptic number.

It is an amenable number.

28504092 is an abundant number, since it is smaller than the sum of its proper divisors (38005484).

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

28504092 is a wasteful number, since it uses less digits than its factorization.

28504092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375348 (or 2375346 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 28504092 is about 5338.9223631741. The cubic root of 28504092 is about 305.4703555193.

The spelling of 28504092 in words is "twenty-eight million, five hundred four thousand, ninety-two".