2123860908 has 24 divisors (see below), whose sum is σ = 5336881648. Its totient is φ = 653495616.

The previous prime is 2123860901. The next prime is 2123860909. The reversal of 2123860908 is 8090683212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2123860901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6807091 + ... + 6807402.

Almost surely, 2^2123860908 is an apocalyptic number.

It is an amenable number.

2123860908 is an abundant number, since it is smaller than the sum of its proper divisors (3213020740).

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

2123860908 is a wasteful number, since it uses less digits than its factorization.

2123860908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13614513 (or 13614511 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 2123860908 is about 46085.3654428388. The cubic root of 2123860908 is about 1285.4110345613.

The spelling of 2123860908 in words is "two billion, one hundred twenty-three million, eight hundred sixty thousand, nine hundred eight".