28988252 has 12 divisors (see below), whose sum is σ = 50768256. Its totient is φ = 14483040.

The previous prime is 28988251. The next prime is 28988263. The reversal of 28988252 is 25288982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28988251) 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, 6728 + ... + 10160.

It is an arithmetic number, because the mean of its divisors is an integer number (4230688).

Almost surely, 2^28988252 is an apocalyptic number.

It is an amenable number.

28988252 is a deficient number, since it is larger than the sum of its proper divisors (21780004).

28988252 is a wasteful number, since it uses less digits than its factorization.

28988252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5548 (or 5546 counting only the distinct ones).

The product of its digits is 184320, while the sum is 44.

The square root of 28988252 is about 5384.0739222266. The cubic root of 28988252 is about 307.1901900938.

The spelling of 28988252 in words is "twenty-eight million, nine hundred eighty-eight thousand, two hundred fifty-two".