1002444 has 12 divisors (see below), whose sum is σ = 2339064. Its totient is φ = 334144.

The previous prime is 1002433. The next prime is 1002451. The reversal of 1002444 is 4442001.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41757 + ... + 41780.

It is an arithmetic number, because the mean of its divisors is an integer number (194922).

2^1002444 is an apocalyptic number.

It is an amenable number.

1002444 is an abundant number, since it is smaller than the sum of its proper divisors (1336620).

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

1002444 is a wasteful number, since it uses less digits than its factorization.

1002444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83544 (or 83542 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1002444 is about 1001.2212542690. The cubic root of 1002444 is about 100.0814003885.

Adding to 1002444 its reverse (4442001), we get a palindrome (5444445).

The spelling of 1002444 in words is "one million, two thousand, four hundred forty-four".