28164252 has 48 divisors (see below), whose sum is σ = 68032160. Its totient is φ = 9061632.

The previous prime is 28164247. The next prime is 28164263. The reversal of 28164252 is 25246182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101538 + ... + 101814.

Almost surely, 2^28164252 is an apocalyptic number.

It is an amenable number.

28164252 is an abundant number, since it is smaller than the sum of its proper divisors (39867908).

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

28164252 is a wasteful number, since it uses less digits than its factorization.

28164252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 548 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 28164252 is about 5307.0002826456. Note that the first 3 decimals coincide. The cubic root of 28164252 is about 304.2515087360.

The spelling of 28164252 in words is "twenty-eight million, one hundred sixty-four thousand, two hundred fifty-two".