30930984 has 96 divisors (see below), whose sum is σ = 99328320. Its totient is φ = 8833536.

The previous prime is 30930961. The next prime is 30931009. The reversal of 30930984 is 48903903.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12472 + ... + 14744.

It is an arithmetic number, because the mean of its divisors is an integer number (1034670).

Almost surely, 2^30930984 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 30930984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49664160).

30930984 is an abundant number, since it is smaller than the sum of its proper divisors (68397336).

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

30930984 is a wasteful number, since it uses less digits than its factorization.

30930984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301 (or 2285 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 30930984 is about 5561.5630896359. The cubic root of 30930984 is about 313.9047677989.

The spelling of 30930984 in words is "thirty million, nine hundred thirty thousand, nine hundred eighty-four".