28498158 has 24 divisors (see below), whose sum is σ = 66496248. Its totient is φ = 8768592.

The previous prime is 28498139. The next prime is 28498181. The reversal of 28498158 is 85189482.

It is a happy number.

28498158 is a `hidden beast` number, since 2 + 8 + 498 + 158 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60660 + ... + 61127.

It is an arithmetic number, because the mean of its divisors is an integer number (2770677).

Almost surely, 2^28498158 is an apocalyptic number.

28498158 is an abundant number, since it is smaller than the sum of its proper divisors (37998090).

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

28498158 is a wasteful number, since it uses less digits than its factorization.

28498158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121808 (or 121805 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 28498158 is about 5338.3666041215. The cubic root of 28498158 is about 305.4491563772.

The spelling of 28498158 in words is "twenty-eight million, four hundred ninety-eight thousand, one hundred fifty-eight".