1044230021 has 4 divisors (see below), whose sum is σ = 1072452492. Its totient is φ = 1016007552.

The previous prime is 1044229993. The next prime is 1044230023. The reversal of 1044230021 is 1200324401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 696220996 + 348009025 = 26386^2 + 18655^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044230021 - 2¹⁸ = 1043967877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044230023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14111180 + ... + 14111253.

It is an arithmetic number, because the mean of its divisors is an integer number (268113123).

Almost surely, 2^1044230021 is an apocalyptic number.

It is an amenable number.

1044230021 is a deficient number, since it is larger than the sum of its proper divisors (28222471).

1044230021 is an equidigital number, since it uses as much as digits as its factorization.

1044230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28222470.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1044230021 is about 32314.5481323815. The cubic root of 1044230021 is about 1014.5311628647.

Adding to 1044230021 its reverse (1200324401), we get a palindrome (2244554422).

The spelling of 1044230021 in words is "one billion, forty-four million, two hundred thirty thousand, twenty-one".