2271144 has 32 divisors (see below), whose sum is σ = 5721120. Its totient is φ = 751296.

The previous prime is 2271133. The next prime is 2271151. The reversal of 2271144 is 4411722.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2271144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3879 + ... + 4425.

It is an arithmetic number, because the mean of its divisors is an integer number (178785).

2^2271144 is an apocalyptic number.

2271144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2271144 is an abundant number, since it is smaller than the sum of its proper divisors (3449976).

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

2271144 is a wasteful number, since it uses less digits than its factorization.

2271144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 725 counting only the distinct ones).

The product of its digits is 448, while the sum is 21.

The square root of 2271144 is about 1507.0315192457. The cubic root of 2271144 is about 131.4462569593.

Adding to 2271144 its reverse (4411722), we get a palindrome (6682866).

It can be divided in two parts, 2271 and 144, that added together give a triangular number (2415 = T₆₉).

The spelling of 2271144 in words is "two million, two hundred seventy-one thousand, one hundred forty-four".