13401204444 has 18 divisors (see below), whose sum is σ = 33875266880. Its totient is φ = 4467068136.

The previous prime is 13401204437. The next prime is 13401204473. The reversal of 13401204444 is 44440210431.

13401204444 is a `hidden beast` number, since 13 + 4 + 0 + 1 + 204 + 444 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 186127804 + ... + 186127875.

Almost surely, 2^13401204444 is an apocalyptic number.

It is an amenable number.

13401204444 is an abundant number, since it is smaller than the sum of its proper divisors (20474062436).

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

13401204444 is a wasteful number, since it uses less digits than its factorization.

13401204444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372255689 (or 372255684 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 13401204444 its reverse (44440210431), we get a palindrome (57841414875).

The spelling of 13401204444 in words is "thirteen billion, four hundred one million, two hundred four thousand, four hundred forty-four".