1320604 has 12 divisors (see below), whose sum is σ = 2373784. Its totient is φ = 642384.

The previous prime is 1320541. The next prime is 1320607. The reversal of 1320604 is 4060231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320607) 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, 4314 + ... + 4609.

2^1320604 is an apocalyptic number.

It is an amenable number.

1320604 is a deficient number, since it is larger than the sum of its proper divisors (1053180).

1320604 is a wasteful number, since it uses less digits than its factorization.

1320604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8964 (or 8962 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1320604 is about 1149.1753565057. The cubic root of 1320604 is about 109.7128599274.

Adding to 1320604 its reverse (4060231), we get a palindrome (5380835).

The spelling of 1320604 in words is "one million, three hundred twenty thousand, six hundred four".