30979994 has 16 divisors (see below), whose sum is σ = 49027680. Its totient is φ = 14641200.

The previous prime is 30979987. The next prime is 30979997. The reversal of 30979994 is 49997903.

It is not an unprimeable number, because it can be changed into a prime (30979997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26057 + ... + 27219.

It is an arithmetic number, because the mean of its divisors is an integer number (3064230).

Almost surely, 2^30979994 is an apocalyptic number.

30979994 is a deficient number, since it is larger than the sum of its proper divisors (18047686).

30979994 is a wasteful number, since it uses less digits than its factorization.

30979994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 30979994 is about 5565.9674810405. The cubic root of 30979994 is about 314.0704738568.

The spelling of 30979994 in words is "thirty million, nine hundred seventy-nine thousand, nine hundred ninety-four".