2016004 has 6 divisors (see below), whose sum is σ = 3528014. Its totient is φ = 1008000.

The previous prime is 2015999. The next prime is 2016017. The reversal of 2016004 is 4006102.

It can be written as a sum of positive squares in only one way, i.e., 1327104 + 688900 = 1152^2 + 830^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251997 + ... + 252004.

2^2016004 is an apocalyptic number.

It is an amenable number.

2016004 is a deficient number, since it is larger than the sum of its proper divisors (1512010).

2016004 is a wasteful number, since it uses less digits than its factorization.

2016004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504005 (or 504003 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2016004 is about 1419.8605565336. The cubic root of 2016004 is about 126.3272755028.

The spelling of 2016004 in words is "two million, sixteen thousand, four".