2011004 has 24 divisors (see below), whose sum is σ = 3655008. Its totient is φ = 967680.

The previous prime is 2011003. The next prime is 2011019. The reversal of 2011004 is 4001102.

It is a junction number, because it is equal to n+sod(n) for n = 2010982 and 2011000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20684 + ... + 20780.

It is an arithmetic number, because the mean of its divisors is an integer number (152292).

2^2011004 is an apocalyptic number.

It is an amenable number.

2011004 is a deficient number, since it is larger than the sum of its proper divisors (1644004).

2011004 is a wasteful number, since it uses less digits than its factorization.

2011004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 243 counting only the distinct ones).

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

The square root of 2011004 is about 1418.0987271696. The cubic root of 2011004 is about 126.2227520192. Note that the first 3 decimals are identical.

Adding to 2011004 its reverse (4001102), we get a palindrome (6012106).

The spelling of 2011004 in words is "two million, eleven thousand, four".