1044321421 has 16 divisors (see below), whose sum is σ = 1228671360. Its totient is φ = 875085120.

The previous prime is 1044321367. The next prime is 1044321427. The reversal of 1044321421 is 1241234401.

It is a happy number.

It is not a de Polignac number, because 1044321421 - 2⁷ = 1044321293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1044321392 and 1044321401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044321427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101335 + ... + 111163.

It is an arithmetic number, because the mean of its divisors is an integer number (76791960).

Almost surely, 2^1044321421 is an apocalyptic number.

1044321421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1044321421 is a deficient number, since it is larger than the sum of its proper divisors (184349939).

1044321421 is a wasteful number, since it uses less digits than its factorization.

1044321421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10596.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1044321421 is about 32315.9623251420. The cubic root of 1044321421 is about 1014.5607621679.

Adding to 1044321421 its reverse (1241234401), we get a palindrome (2285555822).

The spelling of 1044321421 in words is "one billion, forty-four million, three hundred twenty-one thousand, four hundred twenty-one".