14350042640 has 80 divisors (see below), whose sum is σ = 34590036096. Its totient is φ = 5532441600.

The previous prime is 14350042627. The next prime is 14350042643. The reversal of 14350042640 is 4624005341.

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

It is not an unprimeable number, because it can be changed into a prime (14350042643) 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, 245885 + ... + 298595.

Almost surely, 2^14350042640 is an apocalyptic number.

14350042640 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 14350042640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17295018048).

14350042640 is an abundant number, since it is smaller than the sum of its proper divisors (20239993456).

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

14350042640 is a wasteful number, since it uses less digits than its factorization.

14350042640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52848 (or 52842 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 14350042640 its reverse (4624005341), we get a palindrome (18974047981).

The spelling of 14350042640 in words is "fourteen billion, three hundred fifty million, forty-two thousand, six hundred forty".