1204664 has 8 divisors (see below), whose sum is σ = 2258760. Its totient is φ = 602328.

The previous prime is 1204649. The next prime is 1204669. The reversal of 1204664 is 4664021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75284 + ... + 75299.

It is an arithmetic number, because the mean of its divisors is an integer number (282345).

2^1204664 is an apocalyptic number.

It is an amenable number.

1204664 is a deficient number, since it is larger than the sum of its proper divisors (1054096).

1204664 is a wasteful number, since it uses less digits than its factorization.

1204664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150589 (or 150585 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1204664 is about 1097.5718655286. The cubic root of 1204664 is about 106.4033522603.

Adding to 1204664 its reverse (4664021), we get a palindrome (5868685).

The spelling of 1204664 in words is "one million, two hundred four thousand, six hundred sixty-four".