440200040423 has 18 divisors (see below), whose sum is σ = 523939032792. Its totient is φ = 369398618160.

The previous prime is 440200040411. The next prime is 440200040443. The reversal of 440200040423 is 324040002044.

It is not a de Polignac number, because 440200040423 - 2¹⁸ = 440199778279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440200040443) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10742915 + ... + 10783812.

It is an arithmetic number, because the mean of its divisors is an integer number (29107724044).

Almost surely, 2^440200040423 is an apocalyptic number.

440200040423 is a deficient number, since it is larger than the sum of its proper divisors (83738992369).

440200040423 is a wasteful number, since it uses less digits than its factorization.

440200040423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21526775 (or 21526751 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 440200040423 its reverse (324040002044), we get a palindrome (764240042467).

The spelling of 440200040423 in words is "four hundred forty billion, two hundred million, forty thousand, four hundred twenty-three".