104438138 has 16 divisors (see below), whose sum is σ = 179194560. Its totient is φ = 44719776.

The previous prime is 104438137. The next prime is 104438149. The reversal of 104438138 is 831834401.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104438137) 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, 17870 + ... + 22982.

It is an arithmetic number, because the mean of its divisors is an integer number (11199660).

Almost surely, 2^104438138 is an apocalyptic number.

104438138 is a deficient number, since it is larger than the sum of its proper divisors (74756422).

104438138 is a wasteful number, since it uses less digits than its factorization.

104438138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6581.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 104438138 is about 10219.4979328732. The cubic root of 104438138 is about 470.9264027642.

It can be divided in two parts, 10443 and 8138, that added together give a palindrome (18581).

The spelling of 104438138 in words is "one hundred four million, four hundred thirty-eight thousand, one hundred thirty-eight".