30968320 has 40 divisors (see below), whose sum is σ = 74257524. Its totient is φ = 12386304.

The previous prime is 30968303. The next prime is 30968341. The reversal of 30968320 is 2386903.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26708224 + 4260096 = 5168^2 + 2064^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 3489 + ... + 8608.

Almost surely, 2^30968320 is an apocalyptic number.

It is an amenable number.

30968320 is an abundant number, since it is smaller than the sum of its proper divisors (43289204).

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

30968320 is an equidigital number, since it uses as much as digits as its factorization.

30968320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12120 (or 12104 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 30968320 is about 5564.9186876360. The cubic root of 30968320 is about 314.0310191542.

The spelling of 30968320 in words is "thirty million, nine hundred sixty-eight thousand, three hundred twenty".