1444421001 has 8 divisors (see below), whose sum is σ = 1926123264. Its totient is φ = 962833040.

The previous prime is 1444420993. The next prime is 1444421047. The reversal of 1444421001 is 1001244441.

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

It is a cyclic number.

It is not a de Polignac number, because 1444421001 - 2³ = 1444420993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1444421051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7375 + ... + 54251.

It is an arithmetic number, because the mean of its divisors is an integer number (240765408).

Almost surely, 2^1444421001 is an apocalyptic number.

It is an amenable number.

1444421001 is a deficient number, since it is larger than the sum of its proper divisors (481702263).

1444421001 is a wasteful number, since it uses less digits than its factorization.

1444421001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57151.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1444421001 is about 38005.5390831389. The cubic root of 1444421001 is about 1130.3976987913.

Adding to 1444421001 its reverse (1001244441), we get a palindrome (2445665442).

The spelling of 1444421001 in words is "one billion, four hundred forty-four million, four hundred twenty-one thousand, one".