20144423443 has 8 divisors (see below), whose sum is σ = 20254396176. Its totient is φ = 20034508800.

The previous prime is 20144423401. The next prime is 20144423483. The reversal of 20144423443 is 34432444102.

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 20144423443 - 2²⁵ = 20110869011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20144423483) 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, 806208 + ... + 830818.

It is an arithmetic number, because the mean of its divisors is an integer number (2531799522).

Almost surely, 2^20144423443 is an apocalyptic number.

20144423443 is a deficient number, since it is larger than the sum of its proper divisors (109972733).

20144423443 is a wasteful number, since it uses less digits than its factorization.

20144423443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29045.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 20144423443 its reverse (34432444102), we get a palindrome (54576867545).

The spelling of 20144423443 in words is "twenty billion, one hundred forty-four million, four hundred twenty-three thousand, four hundred forty-three".