13044444940 has 24 divisors (see below), whose sum is σ = 28584349920. Its totient is φ = 4990917888.

The previous prime is 13044444937. The next prime is 13044444953. The reversal of 13044444940 is 4944444031.

It is a super-3 number, since 3×13044444940³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13044444940.

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, 14178285 + ... + 14179204.

It is an arithmetic number, because the mean of its divisors is an integer number (1191014580).

Almost surely, 2^13044444940 is an apocalyptic number.

13044444940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13044444940 is an abundant number, since it is smaller than the sum of its proper divisors (15539904980).

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

13044444940 is a wasteful number, since it uses less digits than its factorization.

13044444940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28357521 (or 28357519 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

Adding to 13044444940 its reverse (4944444031), we get a palindrome (17988888971).

The spelling of 13044444940 in words is "thirteen billion, forty-four million, four hundred forty-four thousand, nine hundred forty".