2269445 has 4 divisors (see below), whose sum is σ = 2723340. Its totient is φ = 1815552.

The previous prime is 2269441. The next prime is 2269447. The reversal of 2269445 is 5449622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1493284 + 776161 = 1222^2 + 881^2 .

It is a cyclic number.

It is not a de Polignac number, because 2269445 - 2² = 2269441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2269441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226940 + ... + 226949.

It is an arithmetic number, because the mean of its divisors is an integer number (680835).

2^2269445 is an apocalyptic number.

It is an amenable number.

2269445 is a deficient number, since it is larger than the sum of its proper divisors (453895).

2269445 is an equidigital number, since it uses as much as digits as its factorization.

2269445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453894.

The product of its digits is 17280, while the sum is 32.

The square root of 2269445 is about 1506.4677228537. The cubic root of 2269445 is about 131.4134712938.

The spelling of 2269445 in words is "two million, two hundred sixty-nine thousand, four hundred forty-five".