2272238879 has 4 divisors (see below), whose sum is σ = 2272378920. Its totient is φ = 2272098840.

The previous prime is 2272238873. The next prime is 2272238897. The reversal of 2272238879 is 9788322722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9788322722 = 2 ⋅4894161361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2272238879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272238873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41924 + ... + 79385.

It is an arithmetic number, because the mean of its divisors is an integer number (568094730).

Almost surely, 2^2272238879 is an apocalyptic number.

2272238879 is a deficient number, since it is larger than the sum of its proper divisors (140041).

2272238879 is a wasteful number, since it uses less digits than its factorization.

2272238879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140040.

The product of its digits is 1354752, while the sum is 50.

The square root of 2272238879 is about 47668.0068704367. The cubic root of 2272238879 is about 1314.6737621697.

The spelling of 2272238879 in words is "two billion, two hundred seventy-two million, two hundred thirty-eight thousand, eight hundred seventy-nine".