30996208 has 20 divisors (see below), whose sum is σ = 60732720. Its totient is φ = 15323264.

The previous prime is 30996197. The next prime is 30996209. The reversal of 30996208 is 80269903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30996209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9460 + ... + 12307.

It is an arithmetic number, because the mean of its divisors is an integer number (3036636).

Almost surely, 2^30996208 is an apocalyptic number.

It is an amenable number.

30996208 is a deficient number, since it is larger than the sum of its proper divisors (29736512).

30996208 is a wasteful number, since it uses less digits than its factorization.

30996208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21864 (or 21858 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 30996208 is about 5567.4238207631. The cubic root of 30996208 is about 314.1252559906.

The spelling of 30996208 in words is "thirty million, nine hundred ninety-six thousand, two hundred eight".