104440140 has 72 divisors (see below), whose sum is σ = 362063520. Its totient is φ = 23871744.

The previous prime is 104440139. The next prime is 104440199. The reversal of 104440140 is 41044401.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40185 + ... + 42704.

It is an arithmetic number, because the mean of its divisors is an integer number (5028660).

Almost surely, 2^104440140 is an apocalyptic number.

104440140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104440140 is an abundant number, since it is smaller than the sum of its proper divisors (257623380).

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

104440140 is a wasteful number, since it uses less digits than its factorization.

104440140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82911 (or 82906 counting only the distinct ones).

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

The square root of 104440140 is about 10219.5958824212. The cubic root of 104440140 is about 470.9294118457.

Adding to 104440140 its reverse (41044401), we get a palindrome (145484541).

The spelling of 104440140 in words is "one hundred four million, four hundred forty thousand, one hundred forty".