440030143 has 12 divisors (see below), whose sum is σ = 512487912. Its totient is φ = 376714800.

The previous prime is 440030131. The next prime is 440030147. The reversal of 440030143 is 341030044.

It is not a de Polignac number, because 440030143 - 2¹⁷ = 439899071 is a prime.

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 440030143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440030147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39493 + ... + 49393.

It is an arithmetic number, because the mean of its divisors is an integer number (42707326).

Almost surely, 2^440030143 is an apocalyptic number.

440030143 is a deficient number, since it is larger than the sum of its proper divisors (72457769).

440030143 is an equidigital number, since it uses as much as digits as its factorization.

440030143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10822 (or 10815 counting only the distinct ones).

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

The square root of 440030143 is about 20976.8954566685. The cubic root of 440030143 is about 760.6078603005.

Adding to 440030143 its reverse (341030044), we get a palindrome (781060187).

Subtracting from 440030143 its reverse (341030044), we obtain a palindrome (99000099).

It can be divided in two parts, 4400 and 30143, that added together give a palindrome (34543).

The spelling of 440030143 in words is "four hundred forty million, thirty thousand, one hundred forty-three".