14236134640 has 240 divisors, whose sum is σ = 41664333312. Its totient is φ = 4483842048.

The previous prime is 14236134637. The next prime is 14236134659. The reversal of 14236134640 is 4643163241.

It is a junction number, because it is equal to n+sod(n) for n = 14236134596 and 14236134605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13096177 + ... + 13097263.

Almost surely, 2^14236134640 is an apocalyptic number.

14236134640 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 14236134640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20832166656).

14236134640 is an abundant number, since it is smaller than the sum of its proper divisors (27428198672).

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

14236134640 is a wasteful number, since it uses less digits than its factorization.

14236134640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 14236134640 its reverse (4643163241), we get a palindrome (18879297881).

The spelling of 14236134640 in words is "fourteen billion, two hundred thirty-six million, one hundred thirty-four thousand, six hundred forty".