100240686 has 64 divisors (see below), whose sum is σ = 274176000. Its totient is φ = 26435808.

The previous prime is 100240633. The next prime is 100240691. The reversal of 100240686 is 686042001.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5286 + ... + 15113.

It is an arithmetic number, because the mean of its divisors is an integer number (4284000).

Almost surely, 2^100240686 is an apocalyptic number.

100240686 is an abundant number, since it is smaller than the sum of its proper divisors (173935314).

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

100240686 is a wasteful number, since it uses less digits than its factorization.

100240686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20430 (or 20424 counting only the distinct ones).

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

The square root of 100240686 is about 10012.0270674824. The cubic root of 100240686 is about 464.5309734811.

Adding to 100240686 its reverse (686042001), we get a palindrome (786282687).

The spelling of 100240686 in words is "one hundred million, two hundred forty thousand, six hundred eighty-six".