2194820886 has 16 divisors (see below), whose sum is σ = 4464043200. Its totient is φ = 719206728.

The previous prime is 2194820821. The next prime is 2194820939. The reversal of 2194820886 is 6880284912.

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, 3099676 + ... + 3100383.

It is an arithmetic number, because the mean of its divisors is an integer number (279002700).

Almost surely, 2^2194820886 is an apocalyptic number.

2194820886 is an abundant number, since it is smaller than the sum of its proper divisors (2269222314).

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

2194820886 is a wasteful number, since it uses less digits than its factorization.

2194820886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6200123.

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 2194820886 is about 46848.9155264025. The cubic root of 2194820886 is about 1299.5700522968.

The spelling of 2194820886 in words is "two billion, one hundred ninety-four million, eight hundred twenty thousand, eight hundred eighty-six".