2109942289 has 8 divisors (see below), whose sum is σ = 2596852160. Its totient is φ = 1669404816.

The previous prime is 2109942281. The next prime is 2109942323. The reversal of 2109942289 is 9822499012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2109942289 - 2³ = 2109942281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2109942281) 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, 11592999 + ... + 11593180.

It is an arithmetic number, because the mean of its divisors is an integer number (324606520).

Almost surely, 2^2109942289 is an apocalyptic number.

It is an amenable number.

2109942289 is a deficient number, since it is larger than the sum of its proper divisors (486909871).

2109942289 is a wasteful number, since it uses less digits than its factorization.

2109942289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23186199.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 2109942289 is about 45934.1081223964. The cubic root of 2109942289 is about 1282.5969186561.

It can be divided in two parts, 210 and 9942289, that added together give a palindrome (9942499).

The spelling of 2109942289 in words is "two billion, one hundred nine million, nine hundred forty-two thousand, two hundred eighty-nine".