14004506640 has 80 divisors (see below), whose sum is σ = 43440041088. Its totient is φ = 3732292608.

The previous prime is 14004506591. The next prime is 14004506641. The reversal of 14004506640 is 4660540041.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×14004506640² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 14004506598 and 14004506607.

It is not an unprimeable number, because it can be changed into a prime (14004506641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404077 + ... + 437363.

Almost surely, 2^14004506640 is an apocalyptic number.

14004506640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14004506640 is an abundant number, since it is smaller than the sum of its proper divisors (29435534448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14004506640 is a wasteful number, since it uses less digits than its factorization.

14004506640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35056 (or 35050 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 14004506640 in words is "fourteen billion, four million, five hundred six thousand, six hundred forty".