14303998640 has 20 divisors (see below), whose sum is σ = 33256797024. Its totient is φ = 5721599424.

The previous prime is 14303998607. The next prime is 14303998661. The reversal of 14303998640 is 4689930341.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89399912 + ... + 89400071.

Almost surely, 2^14303998640 is an apocalyptic number.

14303998640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14303998640 is an abundant number, since it is smaller than the sum of its proper divisors (18952798384).

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

14303998640 is a wasteful number, since it uses less digits than its factorization.

14303998640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178799996 (or 178799990 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 14303998640 in words is "fourteen billion, three hundred three million, nine hundred ninety-eight thousand, six hundred forty".