28752208 has 60 divisors (see below), whose sum is σ = 60343360. Its totient is φ = 13261248.

The previous prime is 28752197. The next prime is 28752211. The reversal of 28752208 is 80225782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363913 + ... + 363991.

Almost surely, 2^28752208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28752208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30171680).

28752208 is an abundant number, since it is smaller than the sum of its proper divisors (31591152).

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

28752208 is a wasteful number, since it uses less digits than its factorization.

28752208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 28752208 is about 5362.1085404904. The cubic root of 28752208 is about 306.3541260255.

The spelling of 28752208 in words is "twenty-eight million, seven hundred fifty-two thousand, two hundred eight".