104140044 has 72 divisors (see below), whose sum is σ = 284225760. Its totient is φ = 32051712.

The previous prime is 104140039. The next prime is 104140061. The reversal of 104140044 is 440041401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 104139999 and 104140026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21844 + ... + 26180.

It is an arithmetic number, because the mean of its divisors is an integer number (3947580).

Almost surely, 2^104140044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104140044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142112880).

104140044 is an abundant number, since it is smaller than the sum of its proper divisors (180085716).

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

104140044 is a wasteful number, since it uses less digits than its factorization.

104140044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399 (or 4394 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 104140044 is about 10204.9029392738. The cubic root of 104140044 is about 470.4779264035.

Adding to 104140044 its reverse (440041401), we get a palindrome (544181445).

The spelling of 104140044 in words is "one hundred four million, one hundred forty thousand, forty-four".