1818477222 has 16 divisors (see below), whose sum is σ = 3696577392. Its totient is φ = 596221920.

The previous prime is 1818477211. The next prime is 1818477263. The reversal of 1818477222 is 2227748181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2483893 + ... + 2484624.

It is an arithmetic number, because the mean of its divisors is an integer number (231036087).

Almost surely, 2^1818477222 is an apocalyptic number.

1818477222 is an abundant number, since it is smaller than the sum of its proper divisors (1878100170).

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

1818477222 is a wasteful number, since it uses less digits than its factorization.

1818477222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4968583.

The product of its digits is 100352, while the sum is 42.

The square root of 1818477222 is about 42643.6070472468. The cubic root of 1818477222 is about 1220.5885411723.

The spelling of 1818477222 in words is "one billion, eight hundred eighteen million, four hundred seventy-seven thousand, two hundred twenty-two".