30990239994 has 32 divisors (see below), whose sum is σ = 71011518336. Its totient is φ = 8832268800.

The previous prime is 30990239989. The next prime is 30990240037. The reversal of 30990239994 is 49993209903.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903187 + ... + 936870.

It is an arithmetic number, because the mean of its divisors is an integer number (2219109948).

Almost surely, 2^30990239994 is an apocalyptic number.

30990239994 is an abundant number, since it is smaller than the sum of its proper divisors (40021278342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30990239994 is a wasteful number, since it uses less digits than its factorization.

30990239994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840470.

The product of its (nonzero) digits is 4251528, while the sum is 57.

The spelling of 30990239994 in words is "thirty billion, nine hundred ninety million, two hundred thirty-nine thousand, nine hundred ninety-four".