13426003444 has 96 divisors (see below), whose sum is σ = 28210291200. Its totient is φ = 5469811200.

The previous prime is 13426003399. The next prime is 13426003457. The reversal of 13426003444 is 44430062431.

It is a super-2 number, since 2×13426003444² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 19152294 + ... + 19152994.

It is an arithmetic number, because the mean of its divisors is an integer number (293857200).

Almost surely, 2^13426003444 is an apocalyptic number.

13426003444 is a gapful number since it is divisible by the number (14) 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 13426003444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14105145600).

13426003444 is an abundant number, since it is smaller than the sum of its proper divisors (14784287756).

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

13426003444 is a wasteful number, since it uses less digits than its factorization.

13426003444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 13426003444 its reverse (44430062431), we get a palindrome (57856065875).

The spelling of 13426003444 in words is "thirteen billion, four hundred twenty-six million, three thousand, four hundred forty-four".