4209265 has 8 divisors (see below), whose sum is σ = 5174568. Its totient is φ = 3285120.

The previous prime is 4209259. The next prime is 4209269. The reversal of 4209265 is 5629024.

It can be written as a sum of positive squares in 4 ways, for example, as 76176 + 4133089 = 276^2 + 2033^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4209265 - 2⁹ = 4208753 is a prime.

It is a Duffinian number.

4209265 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4209269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10062 + ... + 10471.

It is an arithmetic number, because the mean of its divisors is an integer number (646821).

Almost surely, 2^4209265 is an apocalyptic number.

It is an amenable number.

4209265 is a deficient number, since it is larger than the sum of its proper divisors (965303).

4209265 is a wasteful number, since it uses less digits than its factorization.

4209265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20579.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 4209265 is about 2051.6493365095. The cubic root of 4209265 is about 161.4614156979.

The spelling of 4209265 in words is "four million, two hundred nine thousand, two hundred sixty-five".