2199440000 has 160 divisors (see below), whose sum is σ = 5767528800. Its totient is φ = 832896000.

The previous prime is 2199439999. The next prime is 2199440051. The reversal of 2199440000 is 449912.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1519277 + ... + 1520723.

It is an arithmetic number, because the mean of its divisors is an integer number (36047055).

Almost surely, 2^2199440000 is an apocalyptic number.

2199440000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2199440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2883764400).

2199440000 is an abundant number, since it is smaller than the sum of its proper divisors (3568088800).

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

2199440000 is an equidigital number, since it uses as much as digits as its factorization.

2199440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 1473 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 2199440000 is about 46898.1875982431. The cubic root of 2199440000 is about 1300.4810842731.

Adding to 2199440000 its reverse (449912), we get a palindrome (2199889912).

The spelling of 2199440000 in words is "two billion, one hundred ninety-nine million, four hundred forty thousand".