13444422320 has 40 divisors (see below), whose sum is σ = 35723752224. Its totient is φ = 4609516032.

The previous prime is 13444422293. The next prime is 13444422361. The reversal of 13444422320 is 2322444431.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×13444422320³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12003389 + ... + 12004508.

Almost surely, 2^13444422320 is an apocalyptic number.

13444422320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13444422320 is an abundant number, since it is smaller than the sum of its proper divisors (22279329904).

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

13444422320 is a wasteful number, since it uses less digits than its factorization.

13444422320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24007917 (or 24007911 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 13444422320 its reverse (2322444431), we get a palindrome (15766866751).

The spelling of 13444422320 in words is "thirteen billion, four hundred forty-four million, four hundred twenty-two thousand, three hundred twenty".