28790492 has 12 divisors (see below), whose sum is σ = 50422680. Its totient is φ = 14384016.

The previous prime is 28790483. The next prime is 28790513. The reversal of 28790492 is 29409782.

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, 6098 + ... + 9734.

It is an arithmetic number, because the mean of its divisors is an integer number (4201890).

Almost surely, 2^28790492 is an apocalyptic number.

It is an amenable number.

28790492 is a deficient number, since it is larger than the sum of its proper divisors (21632188).

28790492 is a wasteful number, since it uses less digits than its factorization.

28790492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5620 (or 5618 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 28790492 is about 5365.6772172765. The cubic root of 28790492 is about 306.4900374387.

The spelling of 28790492 in words is "twenty-eight million, seven hundred ninety thousand, four hundred ninety-two".