100445844 has 12 divisors (see below), whose sum is σ = 234373664. Its totient is φ = 33481944.

The previous prime is 100445831. The next prime is 100445867. The reversal of 100445844 is 448544001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4185232 + ... + 4185255.

Almost surely, 2^100445844 is an apocalyptic number.

It is an amenable number.

100445844 is an abundant number, since it is smaller than the sum of its proper divisors (133927820).

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

100445844 is a wasteful number, since it uses less digits than its factorization.

100445844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8370494 (or 8370492 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 100445844 is about 10022.2674081268. The cubic root of 100445844 is about 464.8476689142.

Adding to 100445844 its reverse (448544001), we get a palindrome (548989845).

The spelling of 100445844 in words is "one hundred million, four hundred forty-five thousand, eight hundred forty-four".