2199944457 has 48 divisors (see below), whose sum is σ = 3406740480. Its totient is φ = 1364688864.

The previous prime is 2199944429. The next prime is 2199944459. The reversal of 2199944457 is 7544499912.

2199944457 is a `hidden beast` number, since 2 + 199 + 9 + 4 + 445 + 7 = 666.

It is not a de Polignac number, because 2199944457 - 2¹² = 2199940361 is a prime.

It is a super-2 number, since 2×2199944457² = 9679511227770049698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2199944459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3907258 + ... + 3907820.

It is an arithmetic number, because the mean of its divisors is an integer number (70973760).

Almost surely, 2^2199944457 is an apocalyptic number.

It is an amenable number.

2199944457 is a deficient number, since it is larger than the sum of its proper divisors (1206796023).

2199944457 is a wasteful number, since it uses less digits than its factorization.

2199944457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1071 counting only the distinct ones).

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

The square root of 2199944457 is about 46903.5655041277. The cubic root of 2199944457 is about 1300.5805014940.

The spelling of 2199944457 in words is "two billion, one hundred ninety-nine million, nine hundred forty-four thousand, four hundred fifty-seven".