100443844 has 24 divisors (see below), whose sum is σ = 182439936. Its totient is φ = 48336000.

The previous prime is 100443821. The next prime is 100443853. The reversal of 100443844 is 448344001.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21564 + ... + 25804.

It is an arithmetic number, because the mean of its divisors is an integer number (7601664).

Almost surely, 2^100443844 is an apocalyptic number.

It is an amenable number.

100443844 is a deficient number, since it is larger than the sum of its proper divisors (81996092).

100443844 is a wasteful number, since it uses less digits than its factorization.

100443844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467 (or 4465 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 100443844 is about 10022.1676298094. The cubic root of 100443844 is about 464.8445836645.

Adding to 100443844 its reverse (448344001), we get a palindrome (548787845).

The spelling of 100443844 in words is "one hundred million, four hundred forty-three thousand, eight hundred forty-four".