2189812922 has 16 divisors (see below), whose sum is σ = 3584926944. Its totient is φ = 994926000.

The previous prime is 2189812913. The next prime is 2189812951. The reversal of 2189812922 is 2292189812.

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, 31172 + ... + 73152.

It is an arithmetic number, because the mean of its divisors is an integer number (224057934).

Almost surely, 2^2189812922 is an apocalyptic number.

2189812922 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2189812922 is a deficient number, since it is larger than the sum of its proper divisors (1395114022).

2189812922 is a wasteful number, since it uses less digits than its factorization.

2189812922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44365.

The product of its digits is 82944, while the sum is 44.

The square root of 2189812922 is about 46795.4369784063. The cubic root of 2189812922 is about 1298.5808817873.

The spelling of 2189812922 in words is "two billion, one hundred eighty-nine million, eight hundred twelve thousand, nine hundred twenty-two".