28153268 has 48 divisors (see below), whose sum is σ = 58677696. Its totient is φ = 11650560.

The previous prime is 28153259. The next prime is 28153273. The reversal of 28153268 is 86235182.

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, 47180 + ... + 47772.

It is an arithmetic number, because the mean of its divisors is an integer number (1222452).

Almost surely, 2^28153268 is an apocalyptic number.

It is an amenable number.

28153268 is an abundant number, since it is smaller than the sum of its proper divisors (30524428).

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

28153268 is a wasteful number, since it uses less digits than its factorization.

28153268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704 (or 702 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 28153268 is about 5305.9653221633. The cubic root of 28153268 is about 304.2119511068.

The spelling of 28153268 in words is "twenty-eight million, one hundred fifty-three thousand, two hundred sixty-eight".