30392968 has 8 divisors (see below), whose sum is σ = 56986830. Its totient is φ = 15196480.

The previous prime is 30392953. The next prime is 30392969. The reversal of 30392968 is 86929303.

It can be written as a sum of positive squares in only one way, i.e., 28708164 + 1684804 = 5358^2 + 1298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 30392968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30392969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1899553 + ... + 1899568.

Almost surely, 2^30392968 is an apocalyptic number.

It is an amenable number.

30392968 is a deficient number, since it is larger than the sum of its proper divisors (26593862).

30392968 is a wasteful number, since it uses less digits than its factorization.

30392968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799127 (or 3799123 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 30392968 is about 5512.9817703308. The cubic root of 30392968 is about 312.0740838758.

The spelling of 30392968 in words is "thirty million, three hundred ninety-two thousand, nine hundred sixty-eight".