2109238318 has 16 divisors (see below), whose sum is σ = 3509982720. Its totient is φ = 942494200.

The previous prime is 2109238309. The next prime is 2109238343. The reversal of 2109238318 is 8138329012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811198 + ... + 813793.

It is an arithmetic number, because the mean of its divisors is an integer number (219373920).

Almost surely, 2^2109238318 is an apocalyptic number.

2109238318 is a deficient number, since it is larger than the sum of its proper divisors (1400744402).

2109238318 is a wasteful number, since it uses less digits than its factorization.

2109238318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625063.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 2109238318 is about 45926.4446479368. Note that the first 3 decimals coincide. The cubic root of 2109238318 is about 1282.4542589135.

The spelling of 2109238318 in words is "two billion, one hundred nine million, two hundred thirty-eight thousand, three hundred eighteen".