28383308 has 12 divisors (see below), whose sum is σ = 50005200. Its totient is φ = 14096112.

The previous prime is 28383281. The next prime is 28383371. The reversal of 28383308 is 80338382.

It is a super-2 number, since 2×28383308² = 1611224346045728, which contains 22 as substring.

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, 23216 + ... + 24407.

It is an arithmetic number, because the mean of its divisors is an integer number (4167100).

Almost surely, 2^28383308 is an apocalyptic number.

It is an amenable number.

28383308 is a deficient number, since it is larger than the sum of its proper divisors (21621892).

28383308 is a wasteful number, since it uses less digits than its factorization.

28383308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47776 (or 47774 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 28383308 is about 5327.5987086116. The cubic root of 28383308 is about 305.0382752288.

The spelling of 28383308 in words is "twenty-eight million, three hundred eighty-three thousand, three hundred eight".