100641400 has 24 divisors (see below), whose sum is σ = 233991720. Its totient is φ = 40256480.

The previous prime is 100641389. The next prime is 100641419. The reversal of 100641400 is 4146001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251404 + ... + 251803.

It is an arithmetic number, because the mean of its divisors is an integer number (9749655).

Almost surely, 2^100641400 is an apocalyptic number.

100641400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100641400 is an abundant number, since it is smaller than the sum of its proper divisors (133350320).

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

100641400 is a wasteful number, since it uses less digits than its factorization.

100641400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503223 (or 503214 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 100641400 is about 10032.0187400144. The cubic root of 100641400 is about 465.1491408913.

Adding to 100641400 its reverse (4146001), we get a palindrome (104787401).

The spelling of 100641400 in words is "one hundred million, six hundred forty-one thousand, four hundred".