28090926 has 24 divisors (see below), whose sum is σ = 61032504. Its totient is φ = 9337680.

The previous prime is 28090897. The next prime is 28090963. The reversal of 28090926 is 62909082.

It is a congruent number.

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, 5181 + ... + 9111.

It is an arithmetic number, because the mean of its divisors is an integer number (2543021).

Almost surely, 2^28090926 is an apocalyptic number.

28090926 is an abundant number, since it is smaller than the sum of its proper divisors (32941578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28090926 is a wasteful number, since it uses less digits than its factorization.

28090926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336 (or 4333 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 28090926 is about 5300.0873577706. The cubic root of 28090926 is about 303.9872383262.

The spelling of 28090926 in words is "twenty-eight million, ninety thousand, nine hundred twenty-six".