100840700 has 18 divisors (see below), whose sum is σ = 218824536. Its totient is φ = 40336240.

The previous prime is 100840699. The next prime is 100840739. The reversal of 100840700 is 7048001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 504104 + ... + 504303.

Almost surely, 2^100840700 is an apocalyptic number.

100840700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100840700 is an abundant number, since it is smaller than the sum of its proper divisors (117983836).

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

100840700 is a wasteful number, since it uses less digits than its factorization.

100840700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008421 (or 1008414 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 100840700 is about 10041.9470223657. The cubic root of 100840700 is about 465.4559831286.

Adding to 100840700 its reverse (7048001), we get a palindrome (107888701).

The spelling of 100840700 in words is "one hundred million, eight hundred forty thousand, seven hundred".