2199479444 has 24 divisors (see below), whose sum is σ = 4062764160. Its totient is φ = 1039006656.

The previous prime is 2199479441. The next prime is 2199479453. The reversal of 2199479444 is 4449749912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199479441) 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, 11537 + ... + 67320.

It is an arithmetic number, because the mean of its divisors is an integer number (169281840).

Almost surely, 2^2199479444 is an apocalyptic number.

It is an amenable number.

2199479444 is a deficient number, since it is larger than the sum of its proper divisors (1863284716).

2199479444 is a wasteful number, since it uses less digits than its factorization.

2199479444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79247 (or 79245 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The square root of 2199479444 is about 46898.6081243356. The cubic root of 2199479444 is about 1300.4888583533.

The spelling of 2199479444 in words is "two billion, one hundred ninety-nine million, four hundred seventy-nine thousand, four hundred forty-four".