2001500 has 24 divisors (see below), whose sum is σ = 4372368. Its totient is φ = 800400.

The previous prime is 2001487. The next prime is 2001509. The reversal of 2001500 is 51002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1502 + ... + 2501.

It is an arithmetic number, because the mean of its divisors is an integer number (182182).

2^2001500 is an apocalyptic number.

2001500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001500 is an abundant number, since it is smaller than the sum of its proper divisors (2370868).

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

2001500 is a wasteful number, since it uses less digits than its factorization.

2001500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022 (or 4010 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 8.

The square root of 2001500 is about 1414.7437930594. The cubic root of 2001500 is about 126.0235951445.

Adding to 2001500 its reverse (51002), we get a palindrome (2052502).

The spelling of 2001500 in words is "two million, one thousand, five hundred".