30663808 has 48 divisors (see below), whose sum is σ = 71076150. Its totient is φ = 13138944.

The previous prime is 30663797. The next prime is 30663811. The reversal of 30663808 is 80836603.

It can be written as a sum of positive squares in only one way, i.e., 23736384 + 6927424 = 4872^2 + 2632^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3828 + ... + 8716.

Almost surely, 2^30663808 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 30663808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35538075).

30663808 is an abundant number, since it is smaller than the sum of its proper divisors (40412342).

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

30663808 is an equidigital number, since it uses as much as digits as its factorization.

30663808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4917 (or 4898 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 30663808 is about 5537.4911286611. The cubic root of 30663808 is about 312.9983361995.

The spelling of 30663808 in words is "thirty million, six hundred sixty-three thousand, eight hundred eight".