104142040 has 32 divisors (see below), whose sum is σ = 246654000. Its totient is φ = 39464064.

The previous prime is 104142011. The next prime is 104142061. The reversal of 104142040 is 40241401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67755 + ... + 69274.

Almost surely, 2^104142040 is an apocalyptic number.

104142040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104142040 is an abundant number, since it is smaller than the sum of its proper divisors (142511960).

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

104142040 is a wasteful number, since it uses less digits than its factorization.

104142040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137059 (or 137055 counting only the distinct ones).

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

The square root of 104142040 is about 10205.0007349338. Note that the first 3 decimals coincide. The cubic root of 104142040 is about 470.4809321891.

Adding to 104142040 its reverse (40241401), we get a palindrome (144383441).

The spelling of 104142040 in words is "one hundred four million, one hundred forty-two thousand, forty".