2223746381 has 2 divisors, whose sum is σ = 2223746382. Its totient is φ = 2223746380.

The previous prime is 2223746351. The next prime is 2223746383. The reversal of 2223746381 is 1836473222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2112781225 + 110965156 = 45965^2 + 10534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2223746381 is a prime.

It is a super-2 number, since 2×2223746381² = 9890095934021194322, which contains 22 as substring.

Together with 2223746383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2223746383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111873190 + 1111873191.

It is an arithmetic number, because the mean of its divisors is an integer number (1111873191).

Almost surely, 2^2223746381 is an apocalyptic number.

It is an amenable number.

2223746381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223746381 is an equidigital number, since it uses as much as digits as its factorization.

2223746381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 38.

The square root of 2223746381 is about 47156.6154531896. The cubic root of 2223746381 is about 1305.2541562010.

The spelling of 2223746381 in words is "two billion, two hundred twenty-three million, seven hundred forty-six thousand, three hundred eighty-one".