30215968 has 24 divisors (see below), whose sum is σ = 60083100. Its totient is φ = 14956800.

The previous prime is 30215957. The next prime is 30215981. The reversal of 30215968 is 86951203.

It can be written as a sum of positive squares in 2 ways, for example, as 23309584 + 6906384 = 4828^2 + 2628^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443 + ... + 7906.

Almost surely, 2^30215968 is an apocalyptic number.

It is an amenable number.

30215968 is a deficient number, since it is larger than the sum of its proper divisors (29867132).

30215968 is a wasteful number, since it uses less digits than its factorization.

30215968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9460 (or 9452 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 30215968 is about 5496.9053111728. The cubic root of 30215968 is about 311.4670938035.

The spelling of 30215968 in words is "thirty million, two hundred fifteen thousand, nine hundred sixty-eight".