1286204 has 12 divisors (see below), whose sum is σ = 2293704. Its totient is φ = 630864.

The previous prime is 1286191. The next prime is 1286209. The reversal of 1286204 is 4026821.

Added to its reverse (4026821) it gives a square (5313025 = 2305²).

It is a self number, because there is not a number n which added to its sum of digits gives 1286204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286209) 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, 2822 + ... + 3245.

It is an arithmetic number, because the mean of its divisors is an integer number (191142).

2^1286204 is an apocalyptic number.

It is an amenable number.

1286204 is a deficient number, since it is larger than the sum of its proper divisors (1007500).

1286204 is a wasteful number, since it uses less digits than its factorization.

1286204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6124 (or 6122 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1286204 is about 1134.1093421712. The cubic root of 1286204 is about 108.7518412512.

Adding to 1286204 its reverse (4026821), we get a square (5313025 = 2305²).

The spelling of 1286204 in words is "one million, two hundred eighty-six thousand, two hundred four".