104140140 has 96 divisors (see below), whose sum is σ = 330597120. Its totient is φ = 24281856.

The previous prime is 104140117. The next prime is 104140171. The reversal of 104140140 is 41041401.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 31 ways as a sum of consecutive naturals, for example, 11307 + ... + 18333.

It is an arithmetic number, because the mean of its divisors is an integer number (3443720).

Almost surely, 2^104140140 is an apocalyptic number.

104140140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104140140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165298560).

104140140 is an abundant number, since it is smaller than the sum of its proper divisors (226456980).

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

104140140 is a wasteful number, since it uses less digits than its factorization.

104140140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7071 (or 7069 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 104140140 is about 10204.9076428942. The cubic root of 104140140 is about 470.4780709712.

Adding to 104140140 its reverse (41041401), we get a palindrome (145181541).

The spelling of 104140140 in words is "one hundred four million, one hundred forty thousand, one hundred forty".