28393192 has 16 divisors (see below), whose sum is σ = 53727300. Its totient is φ = 14065920.

The previous prime is 28393187. The next prime is 28393207. The reversal of 28393192 is 29139382.

It can be written as a sum of positive squares in 2 ways, for example, as 26687556 + 1705636 = 5166^2 + 1306^2 .

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, 15409 + ... + 17152.

Almost surely, 2^28393192 is an apocalyptic number.

It is an amenable number.

28393192 is a deficient number, since it is larger than the sum of its proper divisors (25334108).

28393192 is a wasteful number, since it uses less digits than its factorization.

28393192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32676 (or 32672 counting only the distinct ones).

The product of its digits is 23328, while the sum is 37.

The square root of 28393192 is about 5328.5262502872. The cubic root of 28393192 is about 305.0736792346.

The spelling of 28393192 in words is "twenty-eight million, three hundred ninety-three thousand, one hundred ninety-two".