2244557881 has 2 divisors, whose sum is σ = 2244557882. Its totient is φ = 2244557880.

The previous prime is 2244557873. The next prime is 2244557893. The reversal of 2244557881 is 1887554422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2182384656 + 62173225 = 46716^2 + 7885^2 .

It is a cyclic number.

It is not a de Polignac number, because 2244557881 - 2³ = 2244557873 is a prime.

It is a super-2 number, since 2×2244557881² = 10076080162318420322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2244557831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122278940 + 1122278941.

It is an arithmetic number, because the mean of its divisors is an integer number (1122278941).

Almost surely, 2^2244557881 is an apocalyptic number.

It is an amenable number.

2244557881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2244557881 is an equidigital number, since it uses as much as digits as its factorization.

2244557881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 716800, while the sum is 46.

The square root of 2244557881 is about 47376.7652019426. The cubic root of 2244557881 is about 1309.3133711106.

The spelling of 2244557881 in words is "two billion, two hundred forty-four million, five hundred fifty-seven thousand, eight hundred eighty-one".