1306604 has 12 divisors (see below), whose sum is σ = 2462544. Its totient is φ = 603024.

The previous prime is 1306601. The next prime is 1306633. The reversal of 1306604 is 4066031.

It is not an unprimeable number, because it can be changed into a prime (1306601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12512 + ... + 12615.

It is an arithmetic number, because the mean of its divisors is an integer number (205212).

2^1306604 is an apocalyptic number.

It is an amenable number.

1306604 is a deficient number, since it is larger than the sum of its proper divisors (1155940).

1306604 is a wasteful number, since it uses less digits than its factorization.

1306604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25144 (or 25142 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1306604 is about 1143.0678020135. The cubic root of 1306604 is about 109.3237854376.

The spelling of 1306604 in words is "one million, three hundred six thousand, six hundred four".