100443500 has 96 divisors (see below), whose sum is σ = 235435200. Its totient is φ = 37324800.

The previous prime is 100443479. The next prime is 100443509. The reversal of 100443500 is 5344001.

It is not an unprimeable number, because it can be changed into a prime (100443509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 921446 + ... + 921554.

It is an arithmetic number, because the mean of its divisors is an integer number (2452450).

Almost surely, 2^100443500 is an apocalyptic number.

100443500 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 100443500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117717600).

100443500 is an abundant number, since it is smaller than the sum of its proper divisors (134991700).

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

100443500 is a wasteful number, since it uses less digits than its factorization.

100443500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 100443500 is about 10022.1504678387. The cubic root of 100443500 is about 464.8440529975.

Adding to 100443500 its reverse (5344001), we get a palindrome (105787501).

The spelling of 100443500 in words is "one hundred million, four hundred forty-three thousand, five hundred".