28975190 has 16 divisors (see below), whose sum is σ = 54900720. Its totient is φ = 10980000.

The previous prime is 28975169. The next prime is 28975201. The reversal of 28975190 is 9157982.

It is a super-2 number, since 2×28975190² = 1679123271072200, which contains 22 as substring.

It is a congruent number.

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, 76061 + ... + 76440.

It is an arithmetic number, because the mean of its divisors is an integer number (3431295).

Almost surely, 2^28975190 is an apocalyptic number.

28975190 is a deficient number, since it is larger than the sum of its proper divisors (25925530).

28975190 is a wasteful number, since it uses less digits than its factorization.

28975190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152527.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 28975190 is about 5382.8607635717. The cubic root of 28975190 is about 307.1440435711.

The spelling of 28975190 in words is "twenty-eight million, nine hundred seventy-five thousand, one hundred ninety".