1044232421 has 2 divisors, whose sum is σ = 1044232422. Its totient is φ = 1044232420.

The previous prime is 1044232393. The next prime is 1044232477. The reversal of 1044232421 is 1242324401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 740601796 + 303630625 = 27214^2 + 17425^2 .

It is an emirp because it is prime and its reverse (1242324401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1044232421 - 2¹⁴ = 1044216037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1044232921) 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 as a sum of consecutive naturals, namely, 522116210 + 522116211.

It is an arithmetic number, because the mean of its divisors is an integer number (522116211).

Almost surely, 2^1044232421 is an apocalyptic number.

It is an amenable number.

1044232421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044232421 is an equidigital number, since it uses as much as digits as its factorization.

1044232421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1044232421 is about 32314.5852673371. The cubic root of 1044232421 is about 1014.5319401114.

Adding to 1044232421 its reverse (1242324401), we get a palindrome (2286556822).

The spelling of 1044232421 in words is "one billion, forty-four million, two hundred thirty-two thousand, four hundred twenty-one".