1000044 has 18 divisors (see below), whose sum is σ = 2527980. Its totient is φ = 333336.
The previous prime is 1000039. The next prime is 1000081. The reversal of 1000044 is 4400001.
1000044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (18).
It is a Harshad number since it is a multiple of its sum of digits (9).
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13854 + ... + 13925.
21000044 is an apocalyptic number.
It is an amenable number.
1000044 is an abundant number, since it is smaller than the sum of its proper divisors (1527936).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1000044 is a wasteful number, since it uses less digits than its factorization.
1000044 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27789 (or 27784 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 9.
The square root of 1000044 is about 1000.0219997580. The cubic root of 1000044 is about 100.0014666452.
Adding to 1000044 its reverse (4400001), we get a palindrome (5400045).
The spelling of 1000044 in words is "one million, forty-four", and thus it is an aban number.
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