30738568 has 16 divisors (see below), whose sum is σ = 65868480. Its totient is φ = 13173648.

The previous prime is 30738563. The next prime is 30738581. The reversal of 30738568 is 86583703.

It is a self number, because there is not a number n which added to its sum of digits gives 30738568.

It is not an unprimeable number, because it can be changed into a prime (30738563) 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, 274396 + ... + 274507.

It is an arithmetic number, because the mean of its divisors is an integer number (4116780).

Almost surely, 2^30738568 is an apocalyptic number.

It is an amenable number.

30738568 is an abundant number, since it is smaller than the sum of its proper divisors (35129912).

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

30738568 is a wasteful number, since it uses less digits than its factorization.

30738568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548916 (or 548912 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 30738568 is about 5544.2373686559. The cubic root of 30738568 is about 313.2524986388.

The spelling of 30738568 in words is "thirty million, seven hundred thirty-eight thousand, five hundred sixty-eight".