104206172040 has 96 divisors (see below), whose sum is σ = 338710483800. Its totient is φ = 27784995840.

The previous prime is 104206172003. The next prime is 104206172053. The reversal of 104206172040 is 40271602401.

104206172040 is a `hidden beast` number, since 1 + 0 + 4 + 2 + 0 + 617 + 2 + 0 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 60330166884 + 43876005156 = 245622^2 + 209466^2 .

It is a junction number, because it is equal to n+sod(n) for n = 104206171995 and 104206172013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5131026 + ... + 5151294.

Almost surely, 2^104206172040 is an apocalyptic number.

104206172040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104206172040 is an abundant number, since it is smaller than the sum of its proper divisors (234504311760).

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

104206172040 is a wasteful number, since it uses less digits than its factorization.

104206172040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34567 (or 34560 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

Adding to 104206172040 its reverse (40271602401), we get a palindrome (144477774441).

The spelling of 104206172040 in words is "one hundred four billion, two hundred six million, one hundred seventy-two thousand, forty".