1899445222 has 8 divisors (see below), whose sum is σ = 2852117136. Its totient is φ = 948739512.

The previous prime is 1899445213. The next prime is 1899445279. The reversal of 1899445222 is 2225449981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489133 + ... + 493000.

It is an arithmetic number, because the mean of its divisors is an integer number (356514642).

Almost surely, 2^1899445222 is an apocalyptic number.

1899445222 is a deficient number, since it is larger than the sum of its proper divisors (952671914).

1899445222 is an equidigital number, since it uses as much as digits as its factorization.

1899445222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983102.

The product of its digits is 414720, while the sum is 46.

The square root of 1899445222 is about 43582.6252307040. The cubic root of 1899445222 is about 1238.4417692757.

The spelling of 1899445222 in words is "one billion, eight hundred ninety-nine million, four hundred forty-five thousand, two hundred twenty-two".