2219808138 has 8 divisors (see below), whose sum is σ = 4439616288. Its totient is φ = 739936044.

The previous prime is 2219808127. The next prime is 2219808179. The reversal of 2219808138 is 8318089122.

It is a sphenic number, since it is the product of 3 distinct primes.

2219808138 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2219808138.

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, 184984006 + ... + 184984017.

It is an arithmetic number, because the mean of its divisors is an integer number (554952036).

Almost surely, 2^2219808138 is an apocalyptic number.

2219808138 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.

2219808138 is a wasteful number, since it uses less digits than its factorization.

2219808138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369968028.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 2219808138 is about 47114.8398914822. The cubic root of 2219808138 is about 1304.4831681630.

The spelling of 2219808138 in words is "two billion, two hundred nineteen million, eight hundred eight thousand, one hundred thirty-eight".