30668944 has 10 divisors (see below), whose sum is σ = 59421110. Its totient is φ = 15334464.

The previous prime is 30668929. The next prime is 30668987. The reversal of 30668944 is 44986603.

It can be written as a sum of positive squares in only one way, i.e., 29030544 + 1638400 = 5388^2 + 1280^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30668897 and 30668906.

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 as a sum of consecutive naturals, namely, 958389 + ... + 958420.

It is an arithmetic number, because the mean of its divisors is an integer number (5942111).

Almost surely, 2^30668944 is an apocalyptic number.

It is an amenable number.

30668944 is a deficient number, since it is larger than the sum of its proper divisors (28752166).

30668944 is a wasteful number, since it uses less digits than its factorization.

30668944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916817 (or 1916811 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 30668944 is about 5537.9548571652. The cubic root of 30668944 is about 313.0158103253.

The spelling of 30668944 in words is "thirty million, six hundred sixty-eight thousand, nine hundred forty-four".