13440402032 has 10 divisors (see below), whose sum is σ = 26040778968. Its totient is φ = 6720201008.

The previous prime is 13440402013. The next prime is 13440402103. The reversal of 13440402032 is 23020404431.

It is a junction number, because it is equal to n+sod(n) for n = 13440401989 and 13440402007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420012548 + ... + 420012579.

Almost surely, 2^13440402032 is an apocalyptic number.

It is an amenable number.

13440402032 is a deficient number, since it is larger than the sum of its proper divisors (12600376936).

13440402032 is an equidigital number, since it uses as much as digits as its factorization.

13440402032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840025135 (or 840025129 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 13440402032 its reverse (23020404431), we get a palindrome (36460806463).

The spelling of 13440402032 in words is "thirteen billion, four hundred forty million, four hundred two thousand, thirty-two".