2271568 has 40 divisors (see below), whose sum is σ = 4839968. Its totient is φ = 1026432.

The previous prime is 2271553. The next prime is 2271569. The reversal of 2271568 is 8651722.

2271568 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13855 + ... + 14017.

2^2271568 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 2271568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419984).

2271568 is an abundant number, since it is smaller than the sum of its proper divisors (2568400).

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

2271568 is a wasteful number, since it uses less digits than its factorization.

2271568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 245 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 2271568 is about 1507.1721865799. The cubic root of 2271568 is about 131.4544363534.

The spelling of 2271568 in words is "two million, two hundred seventy-one thousand, five hundred sixty-eight".