1444324021 has 8 divisors (see below), whose sum is σ = 1651115264. Its totient is φ = 1237647600.

The previous prime is 1444324019. The next prime is 1444324061. The reversal of 1444324021 is 1204234441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1444324021 - 2¹ = 1444324019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444324001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196 + ... + 53746.

It is an arithmetic number, because the mean of its divisors is an integer number (206389408).

Almost surely, 2^1444324021 is an apocalyptic number.

It is an amenable number.

1444324021 is a deficient number, since it is larger than the sum of its proper divisors (206791243).

1444324021 is an equidigital number, since it uses as much as digits as its factorization.

1444324021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57411.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1444324021 is about 38004.2631950680. The cubic root of 1444324021 is about 1130.3723995140.

Adding to 1444324021 its reverse (1204234441), we get a palindrome (2648558462).

The spelling of 1444324021 in words is "one billion, four hundred forty-four million, three hundred twenty-four thousand, twenty-one".