1222439184 has 30 divisors (see below), whose sum is σ = 3421132286. Its totient is φ = 407479680.

The previous prime is 1222439143. The next prime is 1222439191. The reversal of 1222439184 is 4819342221.

It can be written as a sum of positive squares in only one way, i.e., 778410000 + 444029184 = 27900^2 + 21072^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4244437 + ... + 4244724.

Almost surely, 2^1222439184 is an apocalyptic number.

It is an amenable number.

1222439184 is an abundant number, since it is smaller than the sum of its proper divisors (2198693102).

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

1222439184 is a wasteful number, since it uses less digits than its factorization.

1222439184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8489175 (or 8489166 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 1222439184 is about 34963.3977753879. The cubic root of 1222439184 is about 1069.2413710147.

The spelling of 1222439184 in words is "one billion, two hundred twenty-two million, four hundred thirty-nine thousand, one hundred eighty-four".