30653968 has 20 divisors (see below), whose sum is σ = 59591548. Its totient is φ = 15275520.

The previous prime is 30653939. The next prime is 30653971. The reversal of 30653968 is 86935603.

It can be written as a sum of positive squares in 2 ways, for example, as 1364224 + 29289744 = 1168^2 + 5412^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30653968.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1948 + ... + 8068.

Almost surely, 2^30653968 is an apocalyptic number.

It is an amenable number.

30653968 is a deficient number, since it is larger than the sum of its proper divisors (28937580).

30653968 is a wasteful number, since it uses less digits than its factorization.

30653968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442 (or 6436 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 30653968 is about 5536.6025683627. The cubic root of 30653968 is about 312.9648522833.

The spelling of 30653968 in words is "thirty million, six hundred fifty-three thousand, nine hundred sixty-eight".