28017492 has 24 divisors (see below), whose sum is σ = 65654400. Its totient is φ = 9299136.

The previous prime is 28017461. The next prime is 28017511. The reversal of 28017492 is 29471082.

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 7 ways as a sum of consecutive naturals, for example, 2017 + ... + 7752.

It is an arithmetic number, because the mean of its divisors is an integer number (2735600).

Almost surely, 2^28017492 is an apocalyptic number.

It is an amenable number.

28017492 is an abundant number, since it is smaller than the sum of its proper divisors (37636908).

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

28017492 is a wasteful number, since it uses less digits than its factorization.

28017492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10015 (or 10013 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 28017492 is about 5293.1552027123. The cubic root of 28017492 is about 303.7221173749.

The spelling of 28017492 in words is "twenty-eight million, seventeen thousand, four hundred ninety-two".