20140345443 has 8 divisors (see below), whose sum is σ = 26854472448. Its totient is φ = 13426557704.

The previous prime is 20140345441. The next prime is 20140345447. The reversal of 20140345443 is 34454304102.

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 20140345443 - 2¹ = 20140345441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20140345443.

It is not an unprimeable number, because it can be changed into a prime (20140345441) 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, 135346 + ... + 242072.

It is an arithmetic number, because the mean of its divisors is an integer number (3356809056).

Almost surely, 2^20140345443 is an apocalyptic number.

20140345443 is a deficient number, since it is larger than the sum of its proper divisors (6714127005).

20140345443 is a wasteful number, since it uses less digits than its factorization.

20140345443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169633.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20140345443 its reverse (34454304102), we get a palindrome (54594649545).

The spelling of 20140345443 in words is "twenty billion, one hundred forty million, three hundred forty-five thousand, four hundred forty-three".