104042881 has 6 divisors (see below), whose sum is σ = 105780246. Its totient is φ = 102333600.

The previous prime is 104042863. The next prime is 104042891. The reversal of 104042881 is 188240401.

It can be written as a sum of positive squares in 3 ways, for example, as 12362256 + 91680625 = 3516^2 + 9575^2 .

It is not a de Polignac number, because 104042881 - 2⁵ = 104042849 is a prime.

It is a super-2 number, since 2×104042881² = 21649842173560322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104042821) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 10260 + ... + 17701.

It is an arithmetic number, because the mean of its divisors is an integer number (17630041).

Almost surely, 2^104042881 is an apocalyptic number.

It is an amenable number.

104042881 is a deficient number, since it is larger than the sum of its proper divisors (1737365).

104042881 is an frugal number, since it uses more digits than its factorization.

104042881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28083 (or 28022 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 104042881 is about 10200.1412245125. The cubic root of 104042881 is about 470.3315617289.

The spelling of 104042881 in words is "one hundred four million, forty-two thousand, eight hundred eighty-one".