4044013 has 2 divisors, whose sum is σ = 4044014. Its totient is φ = 4044012.

The previous prime is 4043999. The next prime is 4044023. The reversal of 4044013 is 3104404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3617604 + 426409 = 1902^2 + 653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4044013 is a prime.

It is a super-2 number, since 2×4044013² = 32708082288338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4044023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022006 + 2022007.

It is an arithmetic number, because the mean of its divisors is an integer number (2022007).

Almost surely, 2^4044013 is an apocalyptic number.

It is an amenable number.

4044013 is a deficient number, since it is larger than the sum of its proper divisors (1).

4044013 is an equidigital number, since it uses as much as digits as its factorization.

4044013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4044013 is about 2010.9731475084. The cubic root of 4044013 is about 159.3202017426.

Adding to 4044013 its reverse (3104404), we get a palindrome (7148417).

It can be divided in two parts, 404401 and 3, that added together give a palindrome (404404).

The spelling of 4044013 in words is "four million, forty-four thousand, thirteen".