1790222219 has 2 divisors, whose sum is σ = 1790222220. Its totient is φ = 1790222218.

The previous prime is 1790222209. The next prime is 1790222221. The reversal of 1790222219 is 9122220971.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1790222219 is a prime.

It is a super-2 number, since 2×1790222219² = 6409791186802567922, which contains 22 as substring.

Together with 1790222221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1790222209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 895111109 + 895111110.

It is an arithmetic number, because the mean of its divisors is an integer number (895111110).

Almost surely, 2^1790222219 is an apocalyptic number.

1790222219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1790222219 is an equidigital number, since it uses as much as digits as its factorization.

1790222219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1790222219 is about 42311.0177022487. The cubic root of 1790222219 is about 1214.2337899148.

The spelling of 1790222219 in words is "one billion, seven hundred ninety million, two hundred twenty-two thousand, two hundred nineteen".