30503968 has 48 divisors (see below), whose sum is σ = 68977440. Its totient is φ = 13132800.

The previous prime is 30503951. The next prime is 30503981. The reversal of 30503968 is 86930503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4408 + ... + 8968.

It is an arithmetic number, because the mean of its divisors is an integer number (1437030).

Almost surely, 2^30503968 is an apocalyptic number.

30503968 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30503968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34488720).

30503968 is an abundant number, since it is smaller than the sum of its proper divisors (38473472).

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

30503968 is a wasteful number, since it uses less digits than its factorization.

30503968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601 (or 4593 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 30503968 is about 5523.0397427504. The cubic root of 30503968 is about 312.4535371989.

The spelling of 30503968 in words is "thirty million, five hundred three thousand, nine hundred sixty-eight".