2122423989 has 16 divisors (see below), whose sum is σ = 3235735680. Its totient is φ = 1212226560.

The previous prime is 2122423913. The next prime is 2122424027. The reversal of 2122423989 is 9893242212.

It is not a de Polignac number, because 2122423989 - 2⁸ = 2122423733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2122423989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122423889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21997 + ... + 68765.

It is an arithmetic number, because the mean of its divisors is an integer number (202233480).

Almost surely, 2^2122423989 is an apocalyptic number.

It is an amenable number.

2122423989 is a deficient number, since it is larger than the sum of its proper divisors (1113311691).

2122423989 is a wasteful number, since it uses less digits than its factorization.

2122423989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48940.

The product of its digits is 124416, while the sum is 42.

The square root of 2122423989 is about 46069.7730513186. The cubic root of 2122423989 is about 1285.1210833330.

The spelling of 2122423989 in words is "two billion, one hundred twenty-two million, four hundred twenty-three thousand, nine hundred eighty-nine".