28974190 has 48 divisors (see below), whose sum is σ = 62791200. Its totient is φ = 9586752.

The previous prime is 28974157. The next prime is 28974203. The reversal of 28974190 is 9147982.

It is a super-2 number, since 2×28974190² = 1679007372312200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13191 + ... + 15229.

It is an arithmetic number, because the mean of its divisors is an integer number (1308150).

Almost surely, 2^28974190 is an apocalyptic number.

28974190 is an abundant number, since it is smaller than the sum of its proper divisors (33817010).

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

28974190 is a wasteful number, since it uses less digits than its factorization.

28974190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089 (or 2082 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 28974190 is about 5382.7678753593. The cubic root of 28974190 is about 307.1405101162.

The spelling of 28974190 in words is "twenty-eight million, nine hundred seventy-four thousand, one hundred ninety".