2281366 has 12 divisors (see below), whose sum is σ = 3636108. Its totient is φ = 1073312.

The previous prime is 2281361. The next prime is 2281373. The reversal of 2281366 is 6631822.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1396 + ... + 2551.

It is an arithmetic number, because the mean of its divisors is an integer number (303009).

2^2281366 is an apocalyptic number.

2281366 is a deficient number, since it is larger than the sum of its proper divisors (1354742).

2281366 is a wasteful number, since it uses less digits than its factorization.

2281366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3983 (or 3966 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 2281366 is about 1510.4191471244. The cubic root of 2281366 is about 131.6431669503.

Adding to 2281366 its product of digits (3456), we get a palindrome (2284822).

The spelling of 2281366 in words is "two million, two hundred eighty-one thousand, three hundred sixty-six".