100206860 has 72 divisors (see below), whose sum is σ = 237958560. Its totient is φ = 35363328.

The previous prime is 100206859. The next prime is 100206863. The reversal of 100206860 is 68602001.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (100206863) 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, 77096 + ... + 78384.

It is an arithmetic number, because the mean of its divisors is an integer number (3304980).

Almost surely, 2^100206860 is an apocalyptic number.

100206860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100206860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118979280).

100206860 is an abundant number, since it is smaller than the sum of its proper divisors (137751700).

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

100206860 is a wasteful number, since it uses less digits than its factorization.

100206860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347 (or 1332 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 100206860 is about 10010.3376566428. The cubic root of 100206860 is about 464.4787159494.

Adding to 100206860 its reverse (68602001), we get a palindrome (168808861).

The spelling of 100206860 in words is "one hundred million, two hundred six thousand, eight hundred sixty".