1604312 has 16 divisors (see below), whose sum is σ = 3105600. Its totient is φ = 776160.

The previous prime is 1604311. The next prime is 1604329. The reversal of 1604312 is 2134061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2987 + ... + 3482.

It is an arithmetic number, because the mean of its divisors is an integer number (194100).

2^1604312 is an apocalyptic number.

It is an amenable number.

1604312 is a deficient number, since it is larger than the sum of its proper divisors (1501288).

1604312 is a wasteful number, since it uses less digits than its factorization.

1604312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6506 (or 6502 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1604312 is about 1266.6143848859. The cubic root of 1604312 is about 117.0656849860.

Adding to 1604312 its reverse (2134061), we get a palindrome (3738373).

The spelling of 1604312 in words is "one million, six hundred four thousand, three hundred twelve".