100000044 has 108 divisors (see below), whose sum is σ = 271744200. Its totient is φ = 30991488.

The previous prime is 100000039. The next prime is 100000049. The reversal of 100000044 is 440000001.

It is an interprime number because it is at equal distance from previous prime (100000039) and next prime (100000049).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 99999981 and 100000035.

It is not an unprimeable number, because it can be changed into a prime (100000049) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1123552 + ... + 1123640.

It is an arithmetic number, because the mean of its divisors is an integer number (2516150).

Almost surely, 2^100000044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100000044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135872100).

100000044 is an abundant number, since it is smaller than the sum of its proper divisors (171744156).

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

100000044 is a wasteful number, since it uses less digits than its factorization.

100000044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 100000044 is about 10000.0021999998. The cubic root of 100000044 is about 464.1589514379.

Adding to 100000044 its reverse (440000001), we get a palindrome (540000045).

The spelling of 100000044 in words is "one hundred million, forty-four", and thus it is an aban number.