1604973768 has 32 divisors (see below), whose sum is σ = 4014243360. Its totient is φ = 534750080.

The previous prime is 1604973731. The next prime is 1604973779. The reversal of 1604973768 is 8673794061.

It is a self number, because there is not a number n which added to its sum of digits gives 1604973768.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43996 + ... + 71732.

It is an arithmetic number, because the mean of its divisors is an integer number (125445105).

Almost surely, 2^1604973768 is an apocalyptic number.

It is an amenable number.

1604973768 is an abundant number, since it is smaller than the sum of its proper divisors (2409269592).

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

1604973768 is a wasteful number, since it uses less digits than its factorization.

1604973768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30157 (or 30153 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 1604973768 is about 40062.1238578286. The cubic root of 1604973768 is about 1170.8177904476.

The spelling of 1604973768 in words is "one billion, six hundred four million, nine hundred seventy-three thousand, seven hundred sixty-eight".