30863328 has 48 divisors (see below), whose sum is σ = 83215440. Its totient is φ = 10008576.

The previous prime is 30863317. The next prime is 30863333. The reversal of 30863328 is 82336803.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 793 + ... + 7896.

It is an arithmetic number, because the mean of its divisors is an integer number (1733655).

Almost surely, 2^30863328 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 30863328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41607720).

30863328 is an abundant number, since it is smaller than the sum of its proper divisors (52352112).

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

30863328 is a wasteful number, since it uses less digits than its factorization.

30863328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8739 (or 8731 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 30863328 is about 5555.4772972266. The cubic root of 30863328 is about 313.6757305305.

It can be divided in two parts, 308 and 63328, that added together give a palindrome (63636).

The spelling of 30863328 in words is "thirty million, eight hundred sixty-three thousand, three hundred twenty-eight".