13140030444 has 12 divisors (see below), whose sum is σ = 30660071064. Its totient is φ = 4380010144.

The previous prime is 13140030403. The next prime is 13140030457. The reversal of 13140030444 is 44403004131.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547501257 + ... + 547501280.

It is an arithmetic number, because the mean of its divisors is an integer number (2555005922).

Almost surely, 2^13140030444 is an apocalyptic number.

It is an amenable number.

13140030444 is an abundant number, since it is smaller than the sum of its proper divisors (17520040620).

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

13140030444 is a wasteful number, since it uses less digits than its factorization.

13140030444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095002544 (or 1095002542 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 13140030444 its reverse (44403004131), we get a palindrome (57543034575).

The spelling of 13140030444 in words is "thirteen billion, one hundred forty million, thirty thousand, four hundred forty-four".