104044240 has 20 divisors (see below), whose sum is σ = 241903044. Its totient is φ = 41617664.

The previous prime is 104044207. The next prime is 104044243. The reversal of 104044240 is 42440401.

It can be written as a sum of positive squares in 2 ways, for example, as 62157456 + 41886784 = 7884^2 + 6472^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104044243) 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 3 ways as a sum of consecutive naturals, for example, 650197 + ... + 650356.

Almost surely, 2^104044240 is an apocalyptic number.

104044240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104044240 is an abundant number, since it is smaller than the sum of its proper divisors (137858804).

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

104044240 is a wasteful number, since it uses less digits than its factorization.

104044240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300566 (or 1300560 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 104044240 is about 10200.2078410197. The cubic root of 104044240 is about 470.3336095314. Note that the first 3 decimals are identical.

Adding to 104044240 its reverse (42440401), we get a palindrome (146484641).

The spelling of 104044240 in words is "one hundred four million, forty-four thousand, two hundred forty".