2182823449 has 2 divisors, whose sum is σ = 2182823450. Its totient is φ = 2182823448.

The previous prime is 2182823381. The next prime is 2182823459. The reversal of 2182823449 is 9443282812.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2070887049 + 111936400 = 45507^2 + 10580^2 .

It is a cyclic number.

It is not a de Polignac number, because 2182823449 - 2²¹ = 2180726297 is a prime.

It is not a weakly prime, because it can be changed into another prime (2182823459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1091411724 + 1091411725.

It is an arithmetic number, because the mean of its divisors is an integer number (1091411725).

Almost surely, 2^2182823449 is an apocalyptic number.

It is an amenable number.

2182823449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2182823449 is an equidigital number, since it uses as much as digits as its factorization.

2182823449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 43.

The square root of 2182823449 is about 46720.6961527758. The cubic root of 2182823449 is about 1297.1978001856.

The spelling of 2182823449 in words is "two billion, one hundred eighty-two million, eight hundred twenty-three thousand, four hundred forty-nine".