104442140 has 24 divisors (see below), whose sum is σ = 239267952. Its totient is φ = 37978880.

The previous prime is 104442139. The next prime is 104442161. The reversal of 104442140 is 41244401.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 237149 + ... + 237588.

It is an arithmetic number, because the mean of its divisors is an integer number (9969498).

Almost surely, 2^104442140 is an apocalyptic number.

104442140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104442140 is an abundant number, since it is smaller than the sum of its proper divisors (134825812).

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

104442140 is a wasteful number, since it uses less digits than its factorization.

104442140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474757 (or 474755 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 104442140 is about 10219.6937331801. The cubic root of 104442140 is about 470.9324178829.

Adding to 104442140 its reverse (41244401), we get a palindrome (145686541).

It can be divided in two parts, 104 and 442140, that added together give a palindrome (442244).

The spelling of 104442140 in words is "one hundred four million, four hundred forty-two thousand, one hundred forty".