2281965 has 32 divisors (see below), whose sum is σ = 4233216. Its totient is φ = 1028160.

The previous prime is 2281921. The next prime is 2281973. The reversal of 2281965 is 5691822.

It is not a de Polignac number, because 2281965 - 2¹⁴ = 2265581 is a prime.

It is a super-2 number, since 2×2281965² = 10414728522450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10710 + ... + 10920.

It is an arithmetic number, because the mean of its divisors is an integer number (132288).

2^2281965 is an apocalyptic number.

It is an amenable number.

2281965 is a deficient number, since it is larger than the sum of its proper divisors (1951251).

2281965 is a wasteful number, since it uses less digits than its factorization.

2281965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329.

The product of its digits is 8640, while the sum is 33.

The square root of 2281965 is about 1510.6174234398. The cubic root of 2281965 is about 131.6546874394.

The spelling of 2281965 in words is "two million, two hundred eighty-one thousand, nine hundred sixty-five".