28242808 has 16 divisors (see below), whose sum is σ = 57769560. Its totient is φ = 12837600.

The previous prime is 28242791. The next prime is 28242859. The reversal of 28242808 is 80824282.

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, 160383 + ... + 160558.

Almost surely, 2^28242808 is an apocalyptic number.

It is an amenable number.

28242808 is an abundant number, since it is smaller than the sum of its proper divisors (29526752).

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

28242808 is a wasteful number, since it uses less digits than its factorization.

28242808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320958 (or 320954 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 28242808 is about 5314.3962968525. The cubic root of 28242808 is about 304.5341198803.

The spelling of 28242808 in words is "twenty-eight million, two hundred forty-two thousand, eight hundred eight".