2219489684 has 12 divisors (see below), whose sum is σ = 3884922804. Its totient is φ = 1109511744.

The previous prime is 2219489669. The next prime is 2219489707. The reversal of 2219489684 is 4869849122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1009841284 + 1209648400 = 31778^2 + 34780^2 .

It is a super-2 number, since 2×2219489684² = 9852268914764839712, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 35897 + ... + 75680.

It is an arithmetic number, because the mean of its divisors is an integer number (323743567).

Almost surely, 2^2219489684 is an apocalyptic number.

It is an amenable number.

2219489684 is a deficient number, since it is larger than the sum of its proper divisors (1665433120).

2219489684 is a wasteful number, since it uses less digits than its factorization.

2219489684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116554 (or 116552 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 53.

The square root of 2219489684 is about 47111.4602193564. The cubic root of 2219489684 is about 1304.4207847310.

The spelling of 2219489684 in words is "two billion, two hundred nineteen million, four hundred eighty-nine thousand, six hundred eighty-four".