1604002006 has 16 divisors (see below), whose sum is σ = 2489991840. Its totient is φ = 774027520.

The previous prime is 1604001941. The next prime is 1604002007. The reversal of 1604002006 is 6002004061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604002007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200646 + ... + 208486.

It is an arithmetic number, because the mean of its divisors is an integer number (155624490).

Almost surely, 2^1604002006 is an apocalyptic number.

1604002006 is a deficient number, since it is larger than the sum of its proper divisors (885989834).

1604002006 is a wasteful number, since it uses less digits than its factorization.

1604002006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11399.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1604002006 is about 40049.9938327086. The cubic root of 1604002006 is about 1170.5814447487.

Adding to 1604002006 its reverse (6002004061), we get a palindrome (7606006067).

The spelling of 1604002006 in words is "one billion, six hundred four million, two thousand, six".