1801842222 has 16 divisors (see below), whose sum is σ = 3639365712. Its totient is φ = 594667200.

The previous prime is 1801842209. The next prime is 1801842247. The reversal of 1801842222 is 2222481081.

It is a self number, because there is not a number n which added to its sum of digits gives 1801842222.

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 7 ways as a sum of consecutive naturals, for example, 1486063 + ... + 1487274.

It is an arithmetic number, because the mean of its divisors is an integer number (227460357).

Almost surely, 2^1801842222 is an apocalyptic number.

1801842222 is an abundant number, since it is smaller than the sum of its proper divisors (1837523490).

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

1801842222 is a wasteful number, since it uses less digits than its factorization.

1801842222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973443.

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 1801842222 is about 42448.1121134969. The cubic root of 1801842222 is about 1216.8552489653.

The spelling of 1801842222 in words is "one billion, eight hundred one million, eight hundred forty-two thousand, two hundred twenty-two".