2272422781 has 8 divisors (see below), whose sum is σ = 2392797600. Its totient is φ = 2152125360.

The previous prime is 2272422751. The next prime is 2272422797. The reversal of 2272422781 is 1872242722.

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

It is a cyclic number.

It is not a de Polignac number, because 2272422781 - 2⁷ = 2272422653 is a prime.

It is a super-2 number, since 2×2272422781² = 10327810591215547922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2272422781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272422751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46746 + ... + 82036.

It is an arithmetic number, because the mean of its divisors is an integer number (299099700).

Almost surely, 2^2272422781 is an apocalyptic number.

It is an amenable number.

2272422781 is a deficient number, since it is larger than the sum of its proper divisors (120374819).

2272422781 is a wasteful number, since it uses less digits than its factorization.

2272422781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38699.

The product of its digits is 50176, while the sum is 37.

The square root of 2272422781 is about 47669.9358191303. The cubic root of 2272422781 is about 1314.7092286010.

The spelling of 2272422781 in words is "two billion, two hundred seventy-two million, four hundred twenty-two thousand, seven hundred eighty-one".