4090965 has 32 divisors (see below), whose sum is σ = 7070976. Its totient is φ = 2012160.

The previous prime is 4090937. The next prime is 4090967. The reversal of 4090965 is 5690904.

It is a happy number.

It is not a de Polignac number, because 4090965 - 2⁶ = 4090901 is a prime.

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4090967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15424 + ... + 15686.

It is an arithmetic number, because the mean of its divisors is an integer number (220968).

Almost surely, 2^4090965 is an apocalyptic number.

It is an amenable number.

4090965 is a deficient number, since it is larger than the sum of its proper divisors (2980011).

4090965 is a wasteful number, since it uses less digits than its factorization.

4090965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349.

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

The square root of 4090965 is about 2022.6134084397. The cubic root of 4090965 is about 159.9344132227.

The spelling of 4090965 in words is "four million, ninety thousand, nine hundred sixty-five".