2168431930 has 64 divisors (see below), whose sum is σ = 4567062528. Its totient is φ = 725886720.

The previous prime is 2168431913. The next prime is 2168431949. The reversal of 2168431930 is 391348612.

2168431930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2168431930.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 826020 + ... + 828640.

It is an arithmetic number, because the mean of its divisors is an integer number (71360352).

Almost surely, 2^2168431930 is an apocalyptic number.

2168431930 is an abundant number, since it is smaller than the sum of its proper divisors (2398630598).

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

2168431930 is a wasteful number, since it uses less digits than its factorization.

2168431930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 2168431930 is about 46566.4249218254. The cubic root of 2168431930 is about 1294.3406710136.

The spelling of 2168431930 in words is "two billion, one hundred sixty-eight million, four hundred thirty-one thousand, nine hundred thirty".