1044021 has 16 divisors (see below), whose sum is σ = 1608768. Its totient is φ = 595200.

The previous prime is 1044019. The next prime is 1044023. The reversal of 1044021 is 1204401.

It is an interprime number because it is at equal distance from previous prime (1044019) and next prime (1044023).

It is not a de Polignac number, because 1044021 - 2¹ = 1044019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1043988 and 1044006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370 + ... + 1491.

It is an arithmetic number, because the mean of its divisors is an integer number (100548).

2^1044021 is an apocalyptic number.

1044021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1044021 is a deficient number, since it is larger than the sum of its proper divisors (564747).

1044021 is a wasteful number, since it uses less digits than its factorization.

1044021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1044021 is about 1021.7734582577. The cubic root of 1044021 is about 101.4463466264.

Adding to 1044021 its reverse (1204401), we get a palindrome (2248422).

The spelling of 1044021 in words is "one million, forty-four thousand, twenty-one".