100001044 has 48 divisors (see below), whose sum is σ = 208293120. Its totient is φ = 41408640.

The previous prime is 100001029. The next prime is 100001053. The reversal of 100001044 is 440100001.

It is a self number, because there is not a number n which added to its sum of digits gives 100001044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44082 + ... + 46294.

It is an arithmetic number, because the mean of its divisors is an integer number (4339440).

Almost surely, 2^100001044 is an apocalyptic number.

It is an amenable number.

100001044 is an abundant number, since it is smaller than the sum of its proper divisors (108292076).

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

100001044 is a wasteful number, since it uses less digits than its factorization.

100001044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320 (or 2318 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 100001044 is about 10000.0521998638. The cubic root of 100001044 is about 464.1604986286.

Adding to 100001044 its reverse (440100001), we get a palindrome (540101045).

The spelling of 100001044 in words is "one hundred million, one thousand, forty-four".