2221838384 has 10 divisors (see below), whose sum is σ = 4304811900. Its totient is φ = 1110919184.

The previous prime is 2221838369. The next prime is 2221838449. The reversal of 2221838384 is 4838381222.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69432434 + ... + 69432465.

It is an arithmetic number, because the mean of its divisors is an integer number (430481190).

Almost surely, 2^2221838384 is an apocalyptic number.

It is an amenable number.

2221838384 is a deficient number, since it is larger than the sum of its proper divisors (2082973516).

2221838384 is a wasteful number, since it uses less digits than its factorization.

2221838384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138864907 (or 138864901 counting only the distinct ones).

The product of its digits is 147456, while the sum is 41.

The square root of 2221838384 is about 47136.3806841382. The cubic root of 2221838384 is about 1304.8807422715.

It can be divided in two parts, 2221838 and 384, that added together give a palindrome (2222222).

The spelling of 2221838384 in words is "two billion, two hundred twenty-one million, eight hundred thirty-eight thousand, three hundred eighty-four".