2122847994 has 48 divisors (see below), whose sum is σ = 4375101600. Its totient is φ = 686655648.

The previous prime is 2122847989. The next prime is 2122848011. The reversal of 2122847994 is 4997482212.

It is a happy number.

Its product of digits (580608) is a multiple of the sum of its prime divisors (1296).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1985292 + ... + 1986360.

It is an arithmetic number, because the mean of its divisors is an integer number (91147950).

Almost surely, 2^2122847994 is an apocalyptic number.

2122847994 is an abundant number, since it is smaller than the sum of its proper divisors (2252253606).

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

2122847994 is a wasteful number, since it uses less digits than its factorization.

2122847994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339 (or 1296 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 2122847994 is about 46074.3745915232. The cubic root of 2122847994 is about 1285.2066555350.

The spelling of 2122847994 in words is "two billion, one hundred twenty-two million, eight hundred forty-seven thousand, nine hundred ninety-four".