104140240 has 40 divisors (see below), whose sum is σ = 242627328. Its totient is φ = 41569920.

The previous prime is 104140219. The next prime is 104140243. The reversal of 104140240 is 42041401.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104140243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49449 + ... + 51511.

Almost surely, 2^104140240 is an apocalyptic number.

104140240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104140240 is an abundant number, since it is smaller than the sum of its proper divisors (138487088).

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

104140240 is a wasteful number, since it uses less digits than its factorization.

104140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2707 (or 2701 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 104140240 is about 10204.9125424964. The cubic root of 104140240 is about 470.4782215625.

Adding to 104140240 its reverse (42041401), we get a palindrome (146181641).

The spelling of 104140240 in words is "one hundred four million, one hundred forty thousand, two hundred forty".