2108394386 has 16 divisors (see below), whose sum is σ = 3657939264. Its totient is φ = 892710384.

The previous prime is 2108394371. The next prime is 2108394389. The reversal of 2108394386 is 6834938012.

It is not an unprimeable number, because it can be changed into a prime (2108394389) 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, 906065 + ... + 908388.

It is an arithmetic number, because the mean of its divisors is an integer number (228621204).

Almost surely, 2^2108394386 is an apocalyptic number.

2108394386 is a deficient number, since it is larger than the sum of its proper divisors (1549544878).

2108394386 is a wasteful number, since it uses less digits than its factorization.

2108394386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814545.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 2108394386 is about 45917.2558631284. The cubic root of 2108394386 is about 1282.2831942282.

The spelling of 2108394386 in words is "two billion, one hundred eight million, three hundred ninety-four thousand, three hundred eighty-six".