28374188 has 6 divisors (see below), whose sum is σ = 49654836. Its totient is φ = 14187092.

The previous prime is 28374169. The next prime is 28374191. The reversal of 28374188 is 88147382.

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 as a sum of consecutive naturals, namely, 3546770 + ... + 3546777.

It is an arithmetic number, because the mean of its divisors is an integer number (8275806).

Almost surely, 2^28374188 is an apocalyptic number.

It is an amenable number.

28374188 is a deficient number, since it is larger than the sum of its proper divisors (21280648).

28374188 is a wasteful number, since it uses less digits than its factorization.

28374188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7093551 (or 7093549 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 28374188 is about 5326.7427195238. The cubic root of 28374188 is about 305.0056005421.

The spelling of 28374188 in words is "twenty-eight million, three hundred seventy-four thousand, one hundred eighty-eight".