14643632240 has 40 divisors (see below), whose sum is σ = 34054524240. Its totient is φ = 5856062976.

The previous prime is 14643632233. The next prime is 14643632279. The reversal of 14643632240 is 4223634641.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 14643632240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358967 + ... + 397673.

It is an arithmetic number, because the mean of its divisors is an integer number (851363106).

Almost surely, 2^14643632240 is an apocalyptic number.

14643632240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14643632240 is an abundant number, since it is smaller than the sum of its proper divisors (19410892000).

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

14643632240 is a wasteful number, since it uses less digits than its factorization.

14643632240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43449 (or 43443 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

The spelling of 14643632240 in words is "fourteen billion, six hundred forty-three million, six hundred thirty-two thousand, two hundred forty".