100840208 has 40 divisors (see below), whose sum is σ = 223914240. Its totient is φ = 43096320.

The previous prime is 100840199. The next prime is 100840213. The reversal of 100840208 is 802048001.

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, 47228 + ... + 49316.

It is an arithmetic number, because the mean of its divisors is an integer number (5597856).

Almost surely, 2^100840208 is an apocalyptic number.

It is an amenable number.

100840208 is an abundant number, since it is smaller than the sum of its proper divisors (123074032).

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

100840208 is a wasteful number, since it uses less digits than its factorization.

100840208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535 (or 2529 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 100840208 is about 10041.9225250945. The cubic root of 100840208 is about 465.4552261435.

Adding to 100840208 its reverse (802048001), we get a palindrome (902888209).

The spelling of 100840208 in words is "one hundred million, eight hundred forty thousand, two hundred eight".