100003044 has 48 divisors (see below), whose sum is σ = 247980096. Its totient is φ = 31257600.

The previous prime is 100003037. The next prime is 100003063. The reversal of 100003044 is 440300001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66784 + ... + 68264.

It is an arithmetic number, because the mean of its divisors is an integer number (5166252).

Almost surely, 2^100003044 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 100003044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123990048).

100003044 is an abundant number, since it is smaller than the sum of its proper divisors (147977052).

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

100003044 is a wasteful number, since it uses less digits than its factorization.

100003044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 100003044 is about 10000.1521988418. The cubic root of 100003044 is about 464.1635929790.

Adding to 100003044 its reverse (440300001), we get a palindrome (540303045).

The spelling of 100003044 in words is "one hundred million, three thousand, forty-four".