2123409216 has 56 divisors (see below), whose sum is σ = 5667963264. Its totient is φ = 701532160.

The previous prime is 2123409209. The next prime is 2123409217. The reversal of 2123409216 is 6129043212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123409217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27240 + ... + 70631.

Almost surely, 2^2123409216 is an apocalyptic number.

It is an amenable number.

2123409216 is an abundant number, since it is smaller than the sum of its proper divisors (3544554048).

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

2123409216 is a wasteful number, since it uses less digits than its factorization.

2123409216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97999 (or 97989 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2123409216 is about 46080.4645809914. The cubic root of 2123409216 is about 1285.3199031939.

The spelling of 2123409216 in words is "two billion, one hundred twenty-three million, four hundred nine thousand, two hundred sixteen".