30944072 has 32 divisors (see below), whose sum is σ = 59382720. Its totient is φ = 15113280.

The previous prime is 30944059. The next prime is 30944087. The reversal of 30944072 is 27044903.

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 7 ways as a sum of consecutive naturals, for example, 89003 + ... + 89349.

It is an arithmetic number, because the mean of its divisors is an integer number (1855710).

Almost surely, 2^30944072 is an apocalyptic number.

It is an amenable number.

30944072 is a deficient number, since it is larger than the sum of its proper divisors (28438648).

30944072 is a wasteful number, since it uses less digits than its factorization.

30944072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 30944072 is about 5562.7396128167. The cubic root of 30944072 is about 313.9490363148.

Adding to 30944072 its reverse (27044903), we get a palindrome (57988975).

The spelling of 30944072 in words is "thirty million, nine hundred forty-four thousand, seventy-two".