1002444001 has 8 divisors (see below), whose sum is σ = 1080172800. Its totient is φ = 924803472.

The previous prime is 1002443989. The next prime is 1002444019. The reversal of 1002444001 is 1004442001.

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 1002444001 - 2⁹ = 1002443489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002444061) 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, 2550 + ... + 44848.

It is an arithmetic number, because the mean of its divisors is an integer number (135021600).

Almost surely, 2^1002444001 is an apocalyptic number.

It is an amenable number.

1002444001 is a deficient number, since it is larger than the sum of its proper divisors (77728799).

1002444001 is a wasteful number, since it uses less digits than its factorization.

1002444001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44135.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1002444001 is about 31661.3960683985. The cubic root of 1002444001 is about 1000.8140042173.

Adding to 1002444001 its reverse (1004442001), we get a palindrome (2006886002).

The spelling of 1002444001 in words is "one billion, two million, four hundred forty-four thousand, one".