28285492 has 12 divisors (see below), whose sum is σ = 51651936. Its totient is φ = 13527800.

The previous prime is 28285489. The next prime is 28285511. The reversal of 28285492 is 29458282.

It is a happy number.

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, 153634 + ... + 153817.

It is an arithmetic number, because the mean of its divisors is an integer number (4304328).

Almost surely, 2^28285492 is an apocalyptic number.

It is an amenable number.

28285492 is a deficient number, since it is larger than the sum of its proper divisors (23366444).

28285492 is a wasteful number, since it uses less digits than its factorization.

28285492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307478 (or 307476 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 28285492 is about 5318.4106648509. The cubic root of 28285492 is about 304.6874591120.

The spelling of 28285492 in words is "twenty-eight million, two hundred eighty-five thousand, four hundred ninety-two".