1236804 has 12 divisors (see below), whose sum is σ = 2885904. Its totient is φ = 412264.

The previous prime is 1236803. The next prime is 1236811. The reversal of 1236804 is 4086321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1236803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51522 + ... + 51545.

It is an arithmetic number, because the mean of its divisors is an integer number (240492).

2^1236804 is an apocalyptic number.

It is an amenable number.

1236804 is an abundant number, since it is smaller than the sum of its proper divisors (1649100).

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

1236804 is a wasteful number, since it uses less digits than its factorization.

1236804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103074 (or 103072 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1236804 is about 1112.1169003302. The cubic root of 1236804 is about 107.3413271140.

The spelling of 1236804 in words is "one million, two hundred thirty-six thousand, eight hundred four".