30908896 has 48 divisors (see below), whose sum is σ = 66301200. Its totient is φ = 14128128.

The previous prime is 30908887. The next prime is 30908903. The reversal of 30908896 is 69880903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16756 + ... + 18508.

It is an arithmetic number, because the mean of its divisors is an integer number (1381275).

Almost surely, 2^30908896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30908896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33150600).

30908896 is an abundant number, since it is smaller than the sum of its proper divisors (35392304).

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

30908896 is a wasteful number, since it uses less digits than its factorization.

30908896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811 (or 1803 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 30908896 is about 5559.5769623237. The cubic root of 30908896 is about 313.8300295840.

The spelling of 30908896 in words is "thirty million, nine hundred eight thousand, eight hundred ninety-six".