13040440430 has 32 divisors (see below), whose sum is σ = 24740445600. Its totient is φ = 4935192192.

The previous prime is 13040440421. The next prime is 13040440499. The reversal of 13040440430 is 3404404031.

It is a junction number, because it is equal to n+sod(n) for n = 13040440396 and 13040440405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102476 + ... + 191264.

It is an arithmetic number, because the mean of its divisors is an integer number (773138925).

Almost surely, 2^13040440430 is an apocalyptic number.

13040440430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13040440430 is a deficient number, since it is larger than the sum of its proper divisors (11700005170).

13040440430 is a wasteful number, since it uses less digits than its factorization.

13040440430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89588.

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

Adding to 13040440430 its reverse (3404404031), we get a palindrome (16444844461).

The spelling of 13040440430 in words is "thirteen billion, forty million, four hundred forty thousand, four hundred thirty".