28392252 has 48 divisors (see below), whose sum is σ = 76097280. Its totient is φ = 8070912.

The previous prime is 28392239. The next prime is 28392263. The reversal of 28392252 is 25229382.

It is a super-2 number, since 2×28392252² = 1612239947263008, which contains 22 as substring.

Its product of digits (17280) is a multiple of the sum of its prime divisors (1728).

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, 18324 + ... + 19812.

It is an arithmetic number, because the mean of its divisors is an integer number (1585360).

Almost surely, 2^28392252 is an apocalyptic number.

It is an amenable number.

28392252 is an abundant number, since it is smaller than the sum of its proper divisors (47705028).

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

28392252 is a wasteful number, since it uses less digits than its factorization.

28392252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730 (or 1728 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 28392252 is about 5328.4380450560. The cubic root of 28392252 is about 305.0703125541.

The spelling of 28392252 in words is "twenty-eight million, three hundred ninety-two thousand, two hundred fifty-two".