30979372 has 12 divisors (see below), whose sum is σ = 57403080. Its totient is φ = 14578496.

The previous prime is 30979369. The next prime is 30979373. The reversal of 30979372 is 27397903.

It is not an unprimeable number, because it can be changed into a prime (30979373) by changing a digit.

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, 227722 + ... + 227857.

It is an arithmetic number, because the mean of its divisors is an integer number (4783590).

Almost surely, 2^30979372 is an apocalyptic number.

It is an amenable number.

30979372 is a deficient number, since it is larger than the sum of its proper divisors (26423708).

30979372 is a wasteful number, since it uses less digits than its factorization.

30979372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455600 (or 455598 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 40.

The square root of 30979372 is about 5565.9116054785. The cubic root of 30979372 is about 314.0683719289.

The spelling of 30979372 in words is "thirty million, nine hundred seventy-nine thousand, three hundred seventy-two".