28190158 has 8 divisors (see below), whose sum is σ = 42337152. Its totient is φ = 14077776.

The previous prime is 28190147. The next prime is 28190161. The reversal of 28190158 is 85109182.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 6510 + ... + 9937.

It is an arithmetic number, because the mean of its divisors is an integer number (5292144).

Almost surely, 2^28190158 is an apocalyptic number.

28190158 is a deficient number, since it is larger than the sum of its proper divisors (14146994).

28190158 is a wasteful number, since it uses less digits than its factorization.

28190158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17306.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 28190158 is about 5309.4404601615. The cubic root of 28190158 is about 304.3447655374.

The spelling of 28190158 in words is "twenty-eight million, one hundred ninety thousand, one hundred fifty-eight".