30869968 has 20 divisors (see below), whose sum is σ = 60196420. Its totient is φ = 15335424.

The previous prime is 30869953. The next prime is 30869981. The reversal of 30869968 is 86996803.

It can be written as a sum of positive squares in 2 ways, for example, as 17239104 + 13630864 = 4152^2 + 3692^2 .

It is a congruent number.

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, 3633 + ... + 8656.

It is an arithmetic number, because the mean of its divisors is an integer number (3009821).

Almost surely, 2^30869968 is an apocalyptic number.

It is an amenable number.

30869968 is a deficient number, since it is larger than the sum of its proper divisors (29326452).

30869968 is a wasteful number, since it uses less digits than its factorization.

30869968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12454 (or 12448 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 30869968 is about 5556.0748735056. The cubic root of 30869968 is about 313.6982238652.

The spelling of 30869968 in words is "thirty million, eight hundred sixty-nine thousand, nine hundred sixty-eight".