13044421040 has 160 divisors (see below), whose sum is σ = 36103117824. Its totient is φ = 4289725440.

The previous prime is 13044421007. The next prime is 13044421057. The reversal of 13044421040 is 4012444031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13044420997 and 13044421015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1466687 + ... + 1475553.

Almost surely, 2^13044421040 is an apocalyptic number.

13044421040 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 13044421040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18051558912).

13044421040 is an abundant number, since it is smaller than the sum of its proper divisors (23058696784).

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

13044421040 is a wasteful number, since it uses less digits than its factorization.

13044421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8995 (or 8989 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 13044421040 its reverse (4012444031), we get a palindrome (17056865071).

The spelling of 13044421040 in words is "thirteen billion, forty-four million, four hundred twenty-one thousand, forty".