1604609368 has 8 divisors (see below), whose sum is σ = 3008642580. Its totient is φ = 802304680.

The previous prime is 1604609359. The next prime is 1604609381. The reversal of 1604609368 is 8639064061.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×1604609368³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100288078 + ... + 100288093.

Almost surely, 2^1604609368 is an apocalyptic number.

It is an amenable number.

1604609368 is a deficient number, since it is larger than the sum of its proper divisors (1404033212).

1604609368 is a wasteful number, since it uses less digits than its factorization.

1604609368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200576177 (or 200576173 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 1604609368 is about 40057.5756630378. The cubic root of 1604609368 is about 1170.7291746075.

The spelling of 1604609368 in words is "one billion, six hundred four million, six hundred nine thousand, three hundred sixty-eight".