1800933222 has 32 divisors (see below), whose sum is σ = 3968227584. Its totient is φ = 540332000.

The previous prime is 1800933203. The next prime is 1800933229. The reversal of 1800933222 is 2223390081.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1800933222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1800933229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128418 + ... + 141749.

It is an arithmetic number, because the mean of its divisors is an integer number (124007112).

Almost surely, 2^1800933222 is an apocalyptic number.

1800933222 is an abundant number, since it is smaller than the sum of its proper divisors (2167294362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1800933222 is a wasteful number, since it uses less digits than its factorization.

1800933222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270284.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1800933222 is about 42437.4035727918. The cubic root of 1800933222 is about 1216.6505866727.

It can be divided in two parts, 180093 and 3222, that added together give a triangular number (183315 = T₆₀₅).

The spelling of 1800933222 in words is "one billion, eight hundred million, nine hundred thirty-three thousand, two hundred twenty-two".