4013443 has 8 divisors (see below), whose sum is σ = 4680800. Its totient is φ = 3439800.

The previous prime is 4013441. The next prime is 4013461. The reversal of 4013443 is 3443104.

It is not a de Polignac number, because 4013443 - 2¹ = 4013441 is a prime.

It is a super-2 number, since 2×4013443² = 32215449428498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4013443.

It is not an unprimeable number, because it can be changed into a prime (4013441) 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 7 ways as a sum of consecutive naturals, for example, 5508 + ... + 6193.

It is an arithmetic number, because the mean of its divisors is an integer number (585100).

Almost surely, 2^4013443 is an apocalyptic number.

4013443 is a deficient number, since it is larger than the sum of its proper divisors (667357).

4013443 is an equidigital number, since it uses as much as digits as its factorization.

4013443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11722 (or 11708 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 4013443 is about 2003.3579310747. The cubic root of 4013443 is about 158.9177349583.

Adding to 4013443 its reverse (3443104), we get a palindrome (7456547).

It can be divided in two parts, 401 and 3443, that added together give a square (3844 = 62²).

The spelling of 4013443 in words is "four million, thirteen thousand, four hundred forty-three".