2001024444 has 36 divisors (see below), whose sum is σ = 4927741224. Its totient is φ = 631901088.

The previous prime is 2001024439. The next prime is 2001024461. The reversal of 2001024444 is 4444201002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001024444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226627 + ... + 235290.

Almost surely, 2^2001024444 is an apocalyptic number.

It is an amenable number.

2001024444 is an abundant number, since it is smaller than the sum of its proper divisors (2926716780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001024444 is a wasteful number, since it uses less digits than its factorization.

2001024444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461962 (or 461941 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 2001024444 is about 44732.8117157864. The cubic root of 2001024444 is about 1260.1361329356.

Adding to 2001024444 its reverse (4444201002), we get a palindrome (6445225446).

The spelling of 2001024444 in words is "two billion, one million, twenty-four thousand, four hundred forty-four".