13442312232 has 160 divisors (see below), whose sum is σ = 40003979400. Its totient is φ = 4209117696.

The previous prime is 13442312207. The next prime is 13442312237. The reversal of 13442312232 is 23221324431.

13442312232 is a `hidden beast` number, since 1 + 3 + 4 + 423 + 1 + 2 + 232 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13258601316 + 183710916 = 115146^2 + 13554^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13442312196 and 13442312205.

It is not an unprimeable number, because it can be changed into a prime (13442312237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 685638 + ... + 704970.

Almost surely, 2^13442312232 is an apocalyptic number.

13442312232 is a gapful number since it is divisible by the number (12) 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 13442312232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20001989700).

13442312232 is an abundant number, since it is smaller than the sum of its proper divisors (26561667168).

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

13442312232 is a wasteful number, since it uses less digits than its factorization.

13442312232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19417 (or 19404 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 13442312232 its reverse (23221324431), we get a palindrome (36663636663).

The spelling of 13442312232 in words is "thirteen billion, four hundred forty-two million, three hundred twelve thousand, two hundred thirty-two".