2269905 has 16 divisors (see below), whose sum is σ = 3962304. Its totient is φ = 1100480.

The previous prime is 2269903. The next prime is 2269909. The reversal of 2269905 is 5099622.

It is not a de Polignac number, because 2269905 - 2¹ = 2269903 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

2269905 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2269901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6714 + ... + 7043.

It is an arithmetic number, because the mean of its divisors is an integer number (247644).

2^2269905 is an apocalyptic number.

It is an amenable number.

2269905 is a deficient number, since it is larger than the sum of its proper divisors (1692399).

2269905 is a wasteful number, since it uses less digits than its factorization.

2269905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13776.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 2269905 is about 1506.6203901448. The cubic root of 2269905 is about 131.4223495457.

The spelling of 2269905 in words is "two million, two hundred sixty-nine thousand, nine hundred five".