1790222222 has 4 divisors (see below), whose sum is σ = 2685333336. Its totient is φ = 895111110.

The previous prime is 1790222221. The next prime is 1790222251. The reversal of 1790222222 is 2222220971.

It is a semiprime because it is the product of two primes.

1790222222 is a modest number, since divided by 22222 gives 17902 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1790222221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447555554 + ... + 447555557.

It is an arithmetic number, because the mean of its divisors is an integer number (671333334).

Almost surely, 2^1790222222 is an apocalyptic number.

1790222222 is a deficient number, since it is larger than the sum of its proper divisors (895111114).

1790222222 is an equidigital number, since it uses as much as digits as its factorization.

1790222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895111113.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1790222222 is about 42311.0177377004. The cubic root of 1790222222 is about 1214.2337905931.

The spelling of 1790222222 in words is "one billion, seven hundred ninety million, two hundred twenty-two thousand, two hundred twenty-two".