440140143 has 8 divisors (see below), whose sum is σ = 597926448. Its totient is φ = 287890304.

The previous prime is 440140117. The next prime is 440140157. The reversal of 440140143 is 341041044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 440140143 - 2⁶ = 440140079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440140343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1383930 + ... + 1384247.

It is an arithmetic number, because the mean of its divisors is an integer number (74740806).

Almost surely, 2^440140143 is an apocalyptic number.

440140143 is a deficient number, since it is larger than the sum of its proper divisors (157786305).

440140143 is a wasteful number, since it uses less digits than its factorization.

440140143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768233.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 440140143 is about 20979.5172251413. The cubic root of 440140143 is about 760.6712346664.

Adding to 440140143 its reverse (341041044), we get a palindrome (781181187).

Subtracting from 440140143 its reverse (341041044), we obtain a palindrome (99099099).

It can be divided in two parts, 4401 and 40143, that added together give a palindrome (44544).

The spelling of 440140143 in words is "four hundred forty million, one hundred forty thousand, one hundred forty-three".