28842988 has 12 divisors (see below), whose sum is σ = 53131960. Its totient is φ = 13662432.

The previous prime is 28842977. The next prime is 28842991. The reversal of 28842988 is 88924882.

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, 189681 + ... + 189832.

Almost surely, 2^28842988 is an apocalyptic number.

It is an amenable number.

28842988 is a deficient number, since it is larger than the sum of its proper divisors (24288972).

28842988 is a wasteful number, since it uses less digits than its factorization.

28842988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379536 (or 379534 counting only the distinct ones).

The product of its digits is 589824, while the sum is 49.

The square root of 28842988 is about 5370.5668229713. The cubic root of 28842988 is about 306.6762069076.

The spelling of 28842988 in words is "twenty-eight million, eight hundred forty-two thousand, nine hundred eighty-eight".