30990824 has 32 divisors (see below), whose sum is σ = 63148800. Its totient is φ = 14204160.

The previous prime is 30990811. The next prime is 30990833. The reversal of 30990824 is 42809903.

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, 1424 + ... + 8000.

It is an arithmetic number, because the mean of its divisors is an integer number (1973400).

Almost surely, 2^30990824 is an apocalyptic number.

It is an amenable number.

30990824 is an abundant number, since it is smaller than the sum of its proper divisors (32157976).

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

30990824 is a wasteful number, since it uses less digits than its factorization.

30990824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6633 (or 6629 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 30990824 is about 5566.9402727171. The cubic root of 30990824 is about 314.1070672247.

The spelling of 30990824 in words is "thirty million, nine hundred ninety thousand, eight hundred twenty-four".