30976768 has 36 divisors (see below), whose sum is σ = 64533168. Its totient is φ = 14812160.

The previous prime is 30976753. The next prime is 30976787. The reversal of 30976768 is 86767903.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3258 + ... + 8518.

It is an arithmetic number, because the mean of its divisors is an integer number (1792588).

Almost surely, 2^30976768 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 30976768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32266584).

30976768 is an abundant number, since it is smaller than the sum of its proper divisors (33556400).

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

30976768 is an equidigital number, since it uses as much as digits as its factorization.

30976768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300 (or 5286 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 30976768 is about 5565.6776766176. The cubic root of 30976768 is about 314.0595719123.

It can be divided in two parts, 309 and 76768, that added together give a palindrome (77077).

The spelling of 30976768 in words is "thirty million, nine hundred seventy-six thousand, seven hundred sixty-eight".