28352252 has 12 divisors (see below), whose sum is σ = 49667016. Its totient is φ = 14161680.

The previous prime is 28352239. The next prime is 28352257. The reversal of 28352252 is 25225382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28352257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1658 + ... + 7710.

It is an arithmetic number, because the mean of its divisors is an integer number (4138918).

Almost surely, 2^28352252 is an apocalyptic number.

It is an amenable number.

28352252 is a deficient number, since it is larger than the sum of its proper divisors (21314764).

28352252 is a wasteful number, since it uses less digits than its factorization.

28352252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7228 (or 7226 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 28352252 is about 5324.6832769659. The cubic root of 28352252 is about 304.9269806388.

The spelling of 28352252 in words is "twenty-eight million, three hundred fifty-two thousand, two hundred fifty-two".