104140404 has 60 divisors (see below), whose sum is σ = 273421764. Its totient is φ = 34563456.

The previous prime is 104140403. The next prime is 104140411. The reversal of 104140404 is 404041401.

It can be written as a sum of positive squares in 2 ways, for example, as 68856804 + 35283600 = 8298^2 + 5940^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104140403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 94384 + ... + 95480.

Almost surely, 2^104140404 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 104140404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136710882).

104140404 is an abundant number, since it is smaller than the sum of its proper divisors (169281360).

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

104140404 is a wasteful number, since it uses less digits than its factorization.

104140404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406 (or 1395 counting only the distinct ones).

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

The square root of 104140404 is about 10204.9205778389. The cubic root of 104140404 is about 470.4784685320.

Adding to 104140404 its reverse (404041401), we get a palindrome (508181805).

It can be divided in two parts, 10 and 4140404, that added together give a palindrome (4140414).

The spelling of 104140404 in words is "one hundred four million, one hundred forty thousand, four hundred four".