4013444143 has 4 divisors (see below), whose sum is σ = 4081468680. Its totient is φ = 3945419608.

The previous prime is 4013444129. The next prime is 4013444177. The reversal of 4013444143 is 3414443104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4013444143 - 2⁹ = 4013443631 is a prime.

It is a super-2 number, since 2×4013444143² = 32215467777962008898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013444243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34012180 + ... + 34012297.

It is an arithmetic number, because the mean of its divisors is an integer number (1020367170).

Almost surely, 2^4013444143 is an apocalyptic number.

4013444143 is a deficient number, since it is larger than the sum of its proper divisors (68024537).

4013444143 is an equidigital number, since it uses as much as digits as its factorization.

4013444143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68024536.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 4013444143 is about 63351.7493286492. The cubic root of 4013444143 is about 1589.1775004450.

Adding to 4013444143 its reverse (3414443104), we get a palindrome (7427887247).

The spelling of 4013444143 in words is "four billion, thirteen million, four hundred forty-four thousand, one hundred forty-three".