1604642936 has 32 divisors (see below), whose sum is σ = 3327723840. Its totient is φ = 720586368.

The previous prime is 1604642927. The next prime is 1604642947. The reversal of 1604642936 is 6392464061.

It is a junction number, because it is equal to n+sod(n) for n = 1604642893 and 1604642902.

It is a congruent number.

It is an unprimeable number.

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, 204656 + ... + 212351.

It is an arithmetic number, because the mean of its divisors is an integer number (103991370).

Almost surely, 2^1604642936 is an apocalyptic number.

It is an amenable number.

1604642936 is an abundant number, since it is smaller than the sum of its proper divisors (1723080904).

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

1604642936 is a wasteful number, since it uses less digits than its factorization.

1604642936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417063 (or 417059 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 1604642936 is about 40057.9946577459. The cubic root of 1604642936 is about 1170.7373383313.

The spelling of 1604642936 in words is "one billion, six hundred four million, six hundred forty-two thousand, nine hundred thirty-six".