1604000013 has 32 divisors (see below), whose sum is σ = 2782328832. Its totient is φ = 797016000.

The previous prime is 1603999961. The next prime is 1604000023. The reversal of 1604000013 is 3100004061.

It is not a de Polignac number, because 1604000013 - 2¹³ = 1603991821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1603999956 and 1604000001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604000023) 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 31 ways as a sum of consecutive naturals, for example, 145638 + ... + 156263.

It is an arithmetic number, because the mean of its divisors is an integer number (86947776).

Almost surely, 2^1604000013 is an apocalyptic number.

It is an amenable number.

1604000013 is a deficient number, since it is larger than the sum of its proper divisors (1178328819).

1604000013 is a wasteful number, since it uses less digits than its factorization.

1604000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301945.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1604000013 is about 40049.9689512988. The cubic root of 1604000013 is about 1170.5809599260.

Adding to 1604000013 its reverse (3100004061), we get a palindrome (4704004074).

The spelling of 1604000013 in words is "one billion, six hundred four million, thirteen", and thus it is an aban number.