1278804 has 24 divisors (see below), whose sum is σ = 3034528. Its totient is φ = 419040.

The previous prime is 1278803. The next prime is 1278811. The reversal of 1278804 is 4088721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1278803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142 + ... + 1605.

2^1278804 is an apocalyptic number.

It is an amenable number.

1278804 is an abundant number, since it is smaller than the sum of its proper divisors (1755724).

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

1278804 is a wasteful number, since it uses less digits than its factorization.

1278804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815 (or 1813 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 1278804 is about 1130.8421640530. The cubic root of 1278804 is about 108.5428770062.

The spelling of 1278804 in words is "one million, two hundred seventy-eight thousand, eight hundred four".