28290092 has 36 divisors (see below), whose sum is σ = 53257008. Its totient is φ = 13120800.

The previous prime is 28290061. The next prime is 28290103. The reversal of 28290092 is 29009282.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 398417 + ... + 398487.

Almost surely, 2^28290092 is an apocalyptic number.

It is an amenable number.

28290092 is a deficient number, since it is larger than the sum of its proper divisors (24966916).

28290092 is a wasteful number, since it uses less digits than its factorization.

28290092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 28290092 is about 5318.8431072932. The cubic root of 28290092 is about 304.7039750741.

The spelling of 28290092 in words is "twenty-eight million, two hundred ninety thousand, ninety-two".