1226804 has 6 divisors (see below), whose sum is σ = 2146914. Its totient is φ = 613400.

The previous prime is 1226803. The next prime is 1226807. The reversal of 1226804 is 4086221.

Added to its reverse (4086221) it gives a square (5313025 = 2305²).

It can be written as a sum of positive squares in only one way, i.e., 739600 + 487204 = 860^2 + 698^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1226804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153347 + ... + 153354.

It is an arithmetic number, because the mean of its divisors is an integer number (357819).

2^1226804 is an apocalyptic number.

It is an amenable number.

1226804 is a deficient number, since it is larger than the sum of its proper divisors (920110).

1226804 is a wasteful number, since it uses less digits than its factorization.

1226804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306705 (or 306703 counting only the distinct ones).

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

The square root of 1226804 is about 1107.6118453682. The cubic root of 1226804 is about 107.0512463057.

Adding to 1226804 its reverse (4086221), we get a square (5313025 = 2305²).

The spelling of 1226804 in words is "one million, two hundred twenty-six thousand, eight hundred four".