30979492 has 12 divisors (see below), whose sum is σ = 54280240. Its totient is φ = 15470856.

The previous prime is 30979489. The next prime is 30979493. The reversal of 30979492 is 29497903.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30979493) 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, 642 + ... + 7897.

Almost surely, 2^30979492 is an apocalyptic number.

It is an amenable number.

30979492 is a deficient number, since it is larger than the sum of its proper divisors (23300748).

30979492 is a wasteful number, since it uses less digits than its factorization.

30979492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9450 (or 9448 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 30979492 is about 5565.9223853733. The cubic root of 30979492 is about 314.0687774477.

The spelling of 30979492 in words is "thirty million, nine hundred seventy-nine thousand, four hundred ninety-two".