13444033220 has 48 divisors (see below), whose sum is σ = 28859846400. Its totient is φ = 5258325504.

The previous prime is 13444033201. The next prime is 13444033223. The reversal of 13444033220 is 2233044431.

It is a self number, because there is not a number n which added to its sum of digits gives 13444033220.

It is not an unprimeable number, because it can be changed into a prime (13444033223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1109756 + ... + 1121804.

It is an arithmetic number, because the mean of its divisors is an integer number (601246800).

Almost surely, 2^13444033220 is an apocalyptic number.

13444033220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13444033220 is an abundant number, since it is smaller than the sum of its proper divisors (15415813180).

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

13444033220 is a wasteful number, since it uses less digits than its factorization.

13444033220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13292 (or 13290 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 13444033220 its reverse (2233044431), we get a palindrome (15677077651).

The spelling of 13444033220 in words is "thirteen billion, four hundred forty-four million, thirty-three thousand, two hundred twenty".