100400200 has 24 divisors (see below), whose sum is σ = 233430930. Its totient is φ = 40160000.

The previous prime is 100400197. The next prime is 100400207. The reversal of 100400200 is 2004001.

It can be written as a sum of positive squares in 3 ways, for example, as 83210884 + 17189316 = 9122^2 + 4146^2 .

It is not an unprimeable number, because it can be changed into a prime (100400207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250801 + ... + 251200.

Almost surely, 2^100400200 is an apocalyptic number.

100400200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100400200 is an abundant number, since it is smaller than the sum of its proper divisors (133030730).

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

100400200 is a wasteful number, since it uses less digits than its factorization.

100400200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502017 (or 502008 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 100400200 is about 10019.9900199551. The cubic root of 100400200 is about 464.7772471465. Note that the first 3 decimals are identical.

Adding to 100400200 its reverse (2004001), we get a palindrome (102404201).

The spelling of 100400200 in words is "one hundred million, four hundred thousand, two hundred".