104140638 has 48 divisors (see below), whose sum is σ = 258442080. Its totient is φ = 29688768.

The previous prime is 104140633. The next prime is 104140651. The reversal of 104140638 is 836041401.

104140638 is a `hidden beast` number, since 10 + 4 + 14 + 0 + 638 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104140633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103956 + ... + 104952.

It is an arithmetic number, because the mean of its divisors is an integer number (5384210).

Almost surely, 2^104140638 is an apocalyptic number.

104140638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

104140638 is an abundant number, since it is smaller than the sum of its proper divisors (154301442).

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

104140638 is a wasteful number, since it uses less digits than its factorization.

104140638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841 (or 1838 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 104140638 is about 10204.9320428898. The cubic root of 104140638 is about 470.4788209148.

The spelling of 104140638 in words is "one hundred four million, one hundred forty thousand, six hundred thirty-eight".