2001004 has 24 divisors (see below), whose sum is σ = 3734640. Its totient is φ = 935424.

The previous prime is 2000989. The next prime is 2001037. The reversal of 2001004 is 4001002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8472 + ... + 8704.

It is an arithmetic number, because the mean of its divisors is an integer number (155610).

2^2001004 is an apocalyptic number.

It is an amenable number.

2001004 is a deficient number, since it is larger than the sum of its proper divisors (1733636).

2001004 is a wasteful number, since it uses less digits than its factorization.

2001004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 2001004 is about 1414.5684854400. The cubic root of 2001004 is about 126.0131841415.

Adding to 2001004 its reverse (4001002), we get a palindrome (6002006).

The spelling of 2001004 in words is "two million, one thousand, four".