13904144444 has 24 divisors (see below), whose sum is σ = 26096167440. Its totient is φ = 6461904384.

The previous prime is 13904144431. The next prime is 13904144447. The reversal of 13904144444 is 44444140931.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 13904144398 and 13904144407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13904144447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1721909 + ... + 1729964.

It is an arithmetic number, because the mean of its divisors is an integer number (1087340310).

Almost surely, 2^13904144444 is an apocalyptic number.

It is an amenable number.

13904144444 is a deficient number, since it is larger than the sum of its proper divisors (12192022996).

13904144444 is a wasteful number, since it uses less digits than its factorization.

13904144444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451949 (or 3451947 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 13904144444 in words is "thirteen billion, nine hundred four million, one hundred forty-four thousand, four hundred forty-four".