30663984 has 80 divisors (see below), whose sum is σ = 86126432. Its totient is φ = 9345024.

The previous prime is 30663973. The next prime is 30664001. The reversal of 30663984 is 48936603.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 15 ways as a sum of consecutive naturals, for example, 97812 + ... + 98124.

Almost surely, 2^30663984 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 30663984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43063216).

30663984 is an abundant number, since it is smaller than the sum of its proper divisors (55462448).

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

30663984 is a wasteful number, since it uses less digits than its factorization.

30663984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 30663984 is about 5537.5070203116. The cubic root of 30663984 is about 312.9989350337.

The spelling of 30663984 in words is "thirty million, six hundred sixty-three thousand, nine hundred eighty-four".