1009044 has 24 divisors (see below), whose sum is σ = 2616320. Its totient is φ = 336312.

The previous prime is 1009037. The next prime is 1009049. The reversal of 1009044 is 4409001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4564 + ... + 4779.

2^1009044 is an apocalyptic number.

It is an amenable number.

1009044 is an abundant number, since it is smaller than the sum of its proper divisors (1607276).

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

1009044 is a wasteful number, since it uses less digits than its factorization.

1009044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9356 (or 9348 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1009044 is about 1004.5118217323. The cubic root of 1009044 is about 100.3005623841.

The spelling of 1009044 in words is "one million, nine thousand, forty-four".