2121796392 has 64 divisors (see below), whose sum is σ = 5407671360. Its totient is φ = 693619200.

The previous prime is 2121796373. The next prime is 2121796399. The reversal of 2121796392 is 2936971212.

It is not an unprimeable number, because it can be changed into a prime (2121796399) 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, 313767 + ... + 320457.

It is an arithmetic number, because the mean of its divisors is an integer number (84494865).

Almost surely, 2^2121796392 is an apocalyptic number.

It is an amenable number.

2121796392 is an abundant number, since it is smaller than the sum of its proper divisors (3285874968).

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

2121796392 is a wasteful number, since it uses less digits than its factorization.

2121796392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6954 (or 6950 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 2121796392 is about 46062.9611727253. The cubic root of 2121796392 is about 1284.9944015058.

The spelling of 2121796392 in words is "two billion, one hundred twenty-one million, seven hundred ninety-six thousand, three hundred ninety-two".