1322604 has 18 divisors (see below), whose sum is σ = 3343340. Its totient is φ = 440856.

The previous prime is 1322599. The next prime is 1322611. The reversal of 1322604 is 4062231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18334 + ... + 18405.

2^1322604 is an apocalyptic number.

It is an amenable number.

1322604 is an abundant number, since it is smaller than the sum of its proper divisors (2020736).

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

1322604 is a wasteful number, since it uses less digits than its factorization.

1322604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36749 (or 36744 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1322604 is about 1150.0452165024. The cubic root of 1322604 is about 109.7682171838.

Adding to 1322604 its reverse (4062231), we get a palindrome (5384835).

The spelling of 1322604 in words is "one million, three hundred twenty-two thousand, six hundred four".