14724307640 has 128 divisors (see below), whose sum is σ = 39985574400. Its totient is φ = 4766999040.

The previous prime is 14724307589. The next prime is 14724307687. The reversal of 14724307640 is 4670342741.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 14724307594 and 14724307603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1682075 + ... + 1690805.

It is an arithmetic number, because the mean of its divisors is an integer number (312387300).

Almost surely, 2^14724307640 is an apocalyptic number.

14724307640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14724307640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19992787200).

14724307640 is an abundant number, since it is smaller than the sum of its proper divisors (25261266760).

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

14724307640 is a wasteful number, since it uses less digits than its factorization.

14724307640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9085 (or 9081 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 14724307640 in words is "fourteen billion, seven hundred twenty-four million, three hundred seven thousand, six hundred forty".