14405940571 has 4 divisors (see below), whose sum is σ = 15715571544. Its totient is φ = 13096309600.

The previous prime is 14405940569. The next prime is 14405940649. The reversal of 14405940571 is 17504950441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 14405940571 - 2¹ = 14405940569 is a prime.

It is a super-2 number, since 2×14405940571² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14405940071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654815470 + ... + 654815491.

It is an arithmetic number, because the mean of its divisors is an integer number (3928892886).

Almost surely, 2^14405940571 is an apocalyptic number.

14405940571 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14405940571 is a deficient number, since it is larger than the sum of its proper divisors (1309630973).

14405940571 is a wasteful number, since it uses less digits than its factorization.

14405940571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309630972.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 14405940571 in words is "fourteen billion, four hundred five million, nine hundred forty thousand, five hundred seventy-one".