30968224 has 24 divisors (see below), whose sum is σ = 69679008. Its totient is φ = 13272000.

The previous prime is 30968221. The next prime is 30968257. The reversal of 30968224 is 42286903.

It is a self number, because there is not a number n which added to its sum of digits gives 30968224.

It is not an unprimeable number, because it can be changed into a prime (30968221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68902 + ... + 69349.

It is an arithmetic number, because the mean of its divisors is an integer number (2903292).

Almost surely, 2^30968224 is an apocalyptic number.

It is an amenable number.

30968224 is an abundant number, since it is smaller than the sum of its proper divisors (38710784).

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

30968224 is a wasteful number, since it uses less digits than its factorization.

30968224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138268 (or 138260 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 30968224 is about 5564.9100621663. The cubic root of 30968224 is about 314.0306946612.

The spelling of 30968224 in words is "thirty million, nine hundred sixty-eight thousand, two hundred twenty-four".