2272238881 has 8 divisors (see below), whose sum is σ = 2479688064. Its totient is φ = 2064936720.

The previous prime is 2272238873. The next prime is 2272238897. The reversal of 2272238881 is 1888322722.

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

It is not a de Polignac number, because 2272238881 - 2³ = 2272238873 is a prime.

It is a super-2 number, since 2×2272238881² = 10326139064656264322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2272238821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3090 + ... + 67483.

It is an arithmetic number, because the mean of its divisors is an integer number (309961008).

Almost surely, 2^2272238881 is an apocalyptic number.

It is an amenable number.

2272238881 is a deficient number, since it is larger than the sum of its proper divisors (207449183).

2272238881 is a wasteful number, since it uses less digits than its factorization.

2272238881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73511.

The product of its digits is 172032, while the sum is 43.

The square root of 2272238881 is about 47668.0068914151. The cubic root of 2272238881 is about 1314.6737625555.

The spelling of 2272238881 in words is "two billion, two hundred seventy-two million, two hundred thirty-eight thousand, eight hundred eighty-one".