29389138444 has 48 divisors (see below), whose sum is σ = 55463546880. Its totient is φ = 13586253120.

The previous prime is 29389138409. The next prime is 29389138463. The reversal of 29389138444 is 44483198392.

It is a super-2 number, since 2×29389138444² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2615382 + ... + 2626594.

It is an arithmetic number, because the mean of its divisors is an integer number (1155490560).

Almost surely, 2^29389138444 is an apocalyptic number.

It is an amenable number.

29389138444 is a deficient number, since it is larger than the sum of its proper divisors (26074408436).

29389138444 is a wasteful number, since it uses less digits than its factorization.

29389138444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12190 (or 12188 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 55.

The spelling of 29389138444 in words is "twenty-nine billion, three hundred eighty-nine million, one hundred thirty-eight thousand, four hundred forty-four".