1044072 has 48 divisors (see below), whose sum is σ = 2997540. Its totient is φ = 327168.

The previous prime is 1044053. The next prime is 1044079. The reversal of 1044072 is 2704401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1028196 + 15876 = 1014^2 + 126^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1044079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 798 + ... + 1650.

2^1044072 is an apocalyptic number.

1044072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1044072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1498770).

1044072 is an abundant number, since it is smaller than the sum of its proper divisors (1953468).

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

1044072 is a wasteful number, since it uses less digits than its factorization.

1044072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1044072 is about 1021.7984145613. The cubic root of 1044072 is about 101.4479984704.

Adding to 1044072 its reverse (2704401), we get a palindrome (3748473).

The spelling of 1044072 in words is "one million, forty-four thousand, seventy-two".