2199479445 has 24 divisors (see below), whose sum is σ = 3893550336. Its totient is φ = 1148095968.

The previous prime is 2199479441. The next prime is 2199479453. The reversal of 2199479445 is 5449749912.

2199479445 is a `hidden beast` number, since 2 + 199 + 4 + 7 + 9 + 445 = 666.

It is not a de Polignac number, because 2199479445 - 2² = 2199479441 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2199479391 and 2199479400.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 517857 + ... + 522086.

It is an arithmetic number, because the mean of its divisors is an integer number (162231264).

Almost surely, 2^2199479445 is an apocalyptic number.

It is an amenable number.

2199479445 is a deficient number, since it is larger than the sum of its proper divisors (1694070891).

2199479445 is a wasteful number, since it uses less digits than its factorization.

2199479445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040001 (or 1039998 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 2199479445 is about 46898.6081349969. The cubic root of 2199479445 is about 1300.4888585504.

The spelling of 2199479445 in words is "two billion, one hundred ninety-nine million, four hundred seventy-nine thousand, four hundred forty-five".