1604617264 has 20 divisors (see below), whose sum is σ = 3244118256. Its totient is φ = 767425472.

The previous prime is 1604617249. The next prime is 1604617291. The reversal of 1604617264 is 4627164061.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2179819 + ... + 2180554.

Almost surely, 2^1604617264 is an apocalyptic number.

It is an amenable number.

1604617264 is an abundant number, since it is smaller than the sum of its proper divisors (1639500992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1604617264 is a wasteful number, since it uses less digits than its factorization.

1604617264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360404 (or 4360398 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1604617264 is about 40057.6742210528. The cubic root of 1604617264 is about 1170.7310949217.

The spelling of 1604617264 in words is "one billion, six hundred four million, six hundred seventeen thousand, two hundred sixty-four".