14040813921 has 8 divisors (see below), whose sum is σ = 18731487264. Its totient is φ = 9355341600.

The previous prime is 14040813889. The next prime is 14040813931. The reversal of 14040813921 is 12931804041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14040813921 - 2⁵ = 14040813889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14040813931) 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, 1293951 + ... + 1304756.

It is an arithmetic number, because the mean of its divisors is an integer number (2341435908).

Almost surely, 2^14040813921 is an apocalyptic number.

It is an amenable number.

14040813921 is a deficient number, since it is larger than the sum of its proper divisors (4690673343).

14040813921 is a wasteful number, since it uses less digits than its factorization.

14040813921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600511.

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 14040813921 in words is "fourteen billion, forty million, eight hundred thirteen thousand, nine hundred twenty-one".