30888368 has 40 divisors (see below), whose sum is σ = 69281280. Its totient is φ = 13066560.

The previous prime is 30888343. The next prime is 30888373. The reversal of 30888368 is 86388803.

It is a happy number.

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, 7103 + ... + 10593.

It is an arithmetic number, because the mean of its divisors is an integer number (1732032).

Almost surely, 2^30888368 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 30888368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34640640).

30888368 is an abundant number, since it is smaller than the sum of its proper divisors (38392912).

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

30888368 is a wasteful number, since it uses less digits than its factorization.

30888368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3585 (or 3579 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 30888368 is about 5557.7304720542. The cubic root of 30888368 is about 313.7605379444.

The spelling of 30888368 in words is "thirty million, eight hundred eighty-eight thousand, three hundred sixty-eight".