2271456 has 96 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 685440.

The previous prime is 2271443. The next prime is 2271473. The reversal of 2271456 is 6541722.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9385 + ... + 9623.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2^2271456 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 2271456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3628800).

2271456 is an abundant number, since it is smaller than the sum of its proper divisors (4986144).

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

2271456 is a wasteful number, since it uses less digits than its factorization.

2271456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 255 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2271456 is about 1507.1350304468. The cubic root of 2271456 is about 131.4522758576.

The spelling of 2271456 in words is "two million, two hundred seventy-one thousand, four hundred fifty-six".