1002000 has 80 divisors (see below), whose sum is σ = 3249792. Its totient is φ = 265600.

The previous prime is 1001989. The next prime is 1002017. The reversal of 1002000 is 2001.

1002000 = 2⁵ + 3⁵ + ... + 13⁵.

It is a Cunningham number, because it is equal to 1001²-1.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (3).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5917 + ... + 6083.

2^1002000 is an apocalyptic number.

1002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624896).

1002000 is an abundant number, since it is smaller than the sum of its proper divisors (2247792).

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

1002000 is a wasteful number, since it uses less digits than its factorization.

1002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 3.

The square root of 1002000 is about 1000.9995004994. Note that the first 3 decimals coincide. The cubic root of 1002000 is about 100.0666222715.

Adding to 1002000 its reverse (2001), we get a palindrome (1004001).

Subtracting from 1002000 its reverse (2001), we obtain a palindrome (999999).

The spelling of 1002000 in words is "one million, two thousand".