2271727272 has 96 divisors (see below), whose sum is σ = 6091420320. Its totient is φ = 705807360.

The previous prime is 2271727247. The next prime is 2271727277. The reversal of 2271727272 is 2727271722.

It is a self number, because there is not a number n which added to its sum of digits gives 2271727272.

It is not an unprimeable number, because it can be changed into a prime (2271727277) 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 23 ways as a sum of consecutive naturals, for example, 740622 + ... + 743682.

It is an arithmetic number, because the mean of its divisors is an integer number (63452295).

Almost surely, 2^2271727272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2271727272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3045710160).

2271727272 is an abundant number, since it is smaller than the sum of its proper divisors (3819693048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2271727272 is a wasteful number, since it uses less digits than its factorization.

2271727272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211 (or 3190 counting only the distinct ones).

The product of its digits is 76832, while the sum is 39.

The square root of 2271727272 is about 47662.6402122249. The cubic root of 2271727272 is about 1314.5750861031.

Adding to 2271727272 its reverse (2727271722), we get a palindrome (4998998994).

The spelling of 2271727272 in words is "two billion, two hundred seventy-one million, seven hundred twenty-seven thousand, two hundred seventy-two".