1263204 has 18 divisors (see below), whose sum is σ = 3193190. Its totient is φ = 421056.

The previous prime is 1263193. The next prime is 1263209. The reversal of 1263204 is 4023621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1205604 + 57600 = 1098^2 + 240^2 .

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17509 + ... + 17580.

2^1263204 is an apocalyptic number.

It is an amenable number.

1263204 is an abundant number, since it is smaller than the sum of its proper divisors (1929986).

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

1263204 is a wasteful number, since it uses less digits than its factorization.

1263204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35099 (or 35094 counting only the distinct ones).

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

The square root of 1263204 is about 1123.9234849401. The cubic root of 1263204 is about 108.0997021685.

Adding to 1263204 its reverse (4023621), we get a palindrome (5286825).

The spelling of 1263204 in words is "one million, two hundred sixty-three thousand, two hundred four".