2222288784 has 50 divisors (see below), whose sum is σ = 6431952230. Its totient is φ = 740762496.

The previous prime is 2222288767. The next prime is 2222288791. The reversal of 2222288784 is 4878822222.

It can be written as a sum of positive squares in only one way, i.e., 2139987600 + 82301184 = 46260^2 + 9072^2 .

It is a super-3 number, since 3×2222288784³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 856069 + ... + 858660.

Almost surely, 2^2222288784 is an apocalyptic number.

2222288784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2222288784 is an abundant number, since it is smaller than the sum of its proper divisors (4209663446).

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

2222288784 is a wasteful number, since it uses less digits than its factorization.

2222288784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714749 (or 1714734 counting only the distinct ones).

The product of its digits is 458752, while the sum is 45.

The square root of 2222288784 is about 47141.1580680831. The cubic root of 2222288784 is about 1304.9689092870.

The spelling of 2222288784 in words is "two billion, two hundred twenty-two million, two hundred eighty-eight thousand, seven hundred eighty-four".