2281911 has 4 divisors (see below), whose sum is σ = 3042552. Its totient is φ = 1521272.

The previous prime is 2281891. The next prime is 2281913. The reversal of 2281911 is 1191822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2281911 - 2¹⁷ = 2150839 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380316 + ... + 380321.

It is an arithmetic number, because the mean of its divisors is an integer number (760638).

2^2281911 is an apocalyptic number.

2281911 is a deficient number, since it is larger than the sum of its proper divisors (760641).

2281911 is an equidigital number, since it uses as much as digits as its factorization.

2281911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760640.

The product of its digits is 288, while the sum is 24.

The square root of 2281911 is about 1510.5995498477. The cubic root of 2281911 is about 131.6536489471.

The spelling of 2281911 in words is "two million, two hundred eighty-one thousand, nine hundred eleven".