28528208 has 20 divisors (see below), whose sum is σ = 55407168. Its totient is φ = 14229600.

The previous prime is 28528189. The next prime is 28528231. The reversal of 28528208 is 80282582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5483 + ... + 9333.

Almost surely, 2^28528208 is an apocalyptic number.

It is an amenable number.

28528208 is a deficient number, since it is larger than the sum of its proper divisors (26878960).

28528208 is a wasteful number, since it uses less digits than its factorization.

28528208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322 (or 4316 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 28528208 is about 5341.1803938830. The cubic root of 28528208 is about 305.5564793703.

The spelling of 28528208 in words is "twenty-eight million, five hundred twenty-eight thousand, two hundred eight".