40330442143 has 4 divisors (see below), whose sum is σ = 40333625248. Its totient is φ = 40327259040.

The previous prime is 40330442083. The next prime is 40330442177. The reversal of 40330442143 is 34124403304.

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 40330442143 - 2⁹ = 40330441631 is a prime.

It is a super-4 number, since 4×40330442143⁴ (a number of 44 digits) contains 4444 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 (40330442183) 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, 1572471 + ... + 1597912.

It is an arithmetic number, because the mean of its divisors is an integer number (10083406312).

Almost surely, 2^40330442143 is an apocalyptic number.

40330442143 is a deficient number, since it is larger than the sum of its proper divisors (3183105).

40330442143 is a wasteful number, since it uses less digits than its factorization.

40330442143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3183104.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 40330442143 its reverse (34124403304), we get a palindrome (74454845447).

The spelling of 40330442143 in words is "forty billion, three hundred thirty million, four hundred forty-two thousand, one hundred forty-three".