29439187444 has 12 divisors (see below), whose sum is σ = 51521599584. Its totient is φ = 14718730424.

The previous prime is 29439187441. The next prime is 29439187457. The reversal of 29439187444 is 44478193492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29439187441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135802 + ... + 278065.

It is an arithmetic number, because the mean of its divisors is an integer number (4293466632).

Almost surely, 2^29439187444 is an apocalyptic number.

It is an amenable number.

29439187444 is a deficient number, since it is larger than the sum of its proper divisors (22082412140).

29439187444 is a wasteful number, since it uses less digits than its factorization.

29439187444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431654 (or 431652 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 55.

The spelling of 29439187444 in words is "twenty-nine billion, four hundred thirty-nine million, one hundred eighty-seven thousand, four hundred forty-four".