2199723980 has 24 divisors (see below), whose sum is σ = 4626039600. Its totient is φ = 878628800.

The previous prime is 2199723973. The next prime is 2199723983. The reversal of 2199723980 is 893279912.

2199723980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2199723983) 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, 64430 + ... + 92469.

It is an arithmetic number, because the mean of its divisors is an integer number (192751650).

Almost surely, 2^2199723980 is an apocalyptic number.

2199723980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2199723980 is an abundant number, since it is smaller than the sum of its proper divisors (2426315620).

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

2199723980 is a wasteful number, since it uses less digits than its factorization.

2199723980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157609 (or 157607 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 2199723980 is about 46901.2151228516. The cubic root of 2199723980 is about 1300.5370522657.

The spelling of 2199723980 in words is "two billion, one hundred ninety-nine million, seven hundred twenty-three thousand, nine hundred eighty".