2220389668 has 12 divisors (see below), whose sum is σ = 4440779392. Its totient is φ = 951595560.

The previous prime is 2220389659. The next prime is 2220389671. The reversal of 2220389668 is 8669830222.

It is a happy number.

2220389668 is an admirable number.

It is a super-2 number, since 2×2220389668² = 9860260555522300448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39649788 + ... + 39649843.

Almost surely, 2^2220389668 is an apocalyptic number.

2220389668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2220389668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2220389668 is a wasteful number, since it uses less digits than its factorization.

2220389668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79299642 (or 79299640 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 2220389668 is about 47121.0108974754. The cubic root of 2220389668 is about 1304.5970713797.

The spelling of 2220389668 in words is "two billion, two hundred twenty million, three hundred eighty-nine thousand, six hundred sixty-eight".