13240340232 has 64 divisors (see below), whose sum is σ = 37904993280. Its totient is φ = 3775409472.

The previous prime is 13240340213. The next prime is 13240340233. The reversal of 13240340232 is 23204304231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (13240340233) 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, 6163 + ... + 162845.

It is an arithmetic number, because the mean of its divisors is an integer number (592265520).

Almost surely, 2^13240340232 is an apocalyptic number.

13240340232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13240340232 is an abundant number, since it is smaller than the sum of its proper divisors (24664653048).

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

13240340232 is a wasteful number, since it uses less digits than its factorization.

13240340232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157202 (or 157198 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 13240340232 its reverse (23204304231), we get a palindrome (36444644463).

The spelling of 13240340232 in words is "thirteen billion, two hundred forty million, three hundred forty thousand, two hundred thirty-two".