28752508 has 24 divisors (see below), whose sum is σ = 53443152. Its totient is φ = 13488384.

The previous prime is 28752481. The next prime is 28752523. The reversal of 28752508 is 80525782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36810 + ... + 37582.

It is an arithmetic number, because the mean of its divisors is an integer number (2226798).

Almost surely, 2^28752508 is an apocalyptic number.

It is an amenable number.

28752508 is a deficient number, since it is larger than the sum of its proper divisors (24690644).

28752508 is a wasteful number, since it uses less digits than its factorization.

28752508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 28752508 is about 5362.1365144875. The cubic root of 28752508 is about 306.3551915196.

The spelling of 28752508 in words is "twenty-eight million, seven hundred fifty-two thousand, five hundred eight".