1604312268 has 36 divisors (see below), whose sum is σ = 4053504168. Its totient is φ = 493633920.

The previous prime is 1604312263. The next prime is 1604312273. The reversal of 1604312268 is 8622134061.

It is an interprime number because it is at equal distance from previous prime (1604312263) and next prime (1604312273).

It is not an unprimeable number, because it can be changed into a prime (1604312263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393513 + ... + 397568.

It is an arithmetic number, because the mean of its divisors is an integer number (112597338).

Almost surely, 2^1604312268 is an apocalyptic number.

It is an amenable number.

1604312268 is an abundant number, since it is smaller than the sum of its proper divisors (2449191900).

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

1604312268 is a wasteful number, since it uses less digits than its factorization.

1604312268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791114 (or 791099 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1604312268 is about 40053.8670792222. The cubic root of 1604312268 is about 1170.6569150462.

The spelling of 1604312268 in words is "one billion, six hundred four million, three hundred twelve thousand, two hundred sixty-eight".