4041665 has 12 divisors (see below), whose sum is σ = 5153916. Its totient is φ = 3042048.

The previous prime is 4041619. The next prime is 4041683. The reversal of 4041665 is 5661404.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 473344 + 3568321 = 688^2 + 1889^2 .

It is not a de Polignac number, because 4041665 - 2⁶ = 4041601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 47 + ... + 2843.

It is an arithmetic number, because the mean of its divisors is an integer number (429493).

Almost surely, 2^4041665 is an apocalyptic number.

It is an amenable number.

4041665 is a deficient number, since it is larger than the sum of its proper divisors (1112251).

4041665 is a wasteful number, since it uses less digits than its factorization.

4041665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836 (or 2819 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 4041665 is about 2010.3892657891. The cubic root of 4041665 is about 159.2893613986.

The spelling of 4041665 in words is "four million, forty-one thousand, six hundred sixty-five".