1201604 has 12 divisors (see below), whose sum is σ = 2132928. Its totient is φ = 592200.

The previous prime is 1201601. The next prime is 1201633. The reversal of 1201604 is 4061021.

It is not an unprimeable number, because it can be changed into a prime (1201601) 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, 1832 + ... + 2399.

It is an arithmetic number, because the mean of its divisors is an integer number (177744).

2^1201604 is an apocalyptic number.

It is an amenable number.

1201604 is a deficient number, since it is larger than the sum of its proper divisors (931324).

1201604 is a wasteful number, since it uses less digits than its factorization.

1201604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306 (or 4304 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1201604 is about 1096.1769930080. The cubic root of 1201604 is about 106.3131831810.

Adding to 1201604 its reverse (4061021), we get a palindrome (5262625).

The spelling of 1201604 in words is "one million, two hundred one thousand, six hundred four".