2271274720 has 192 divisors, whose sum is σ = 6426350784. Its totient is φ = 747601920.

The previous prime is 2271274703. The next prime is 2271274721. The reversal of 2271274720 is 274721722.

It is a super-2 number, since 2×2271274720² = 10317377707422156800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271274721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1211704 + ... + 1213576.

It is an arithmetic number, because the mean of its divisors is an integer number (33470577).

Almost surely, 2^2271274720 is an apocalyptic number.

2271274720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2271274720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3213175392).

2271274720 is an abundant number, since it is smaller than the sum of its proper divisors (4155076064).

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

2271274720 is a wasteful number, since it uses less digits than its factorization.

2271274720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965 (or 1957 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 2271274720 is about 47657.8925257926. The cubic root of 2271274720 is about 1314.4877879049.

The spelling of 2271274720 in words is "two billion, two hundred seventy-one million, two hundred seventy-four thousand, seven hundred twenty".