1155804 has 48 divisors (see below), whose sum is σ = 3010560. Its totient is φ = 342720.

The previous prime is 1155733. The next prime is 1155821. The reversal of 1155804 is 4085511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4717 + ... + 4955.

It is an arithmetic number, because the mean of its divisors is an integer number (62720).

2^1155804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1155804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1505280).

1155804 is an abundant number, since it is smaller than the sum of its proper divisors (1854756).

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

1155804 is a wasteful number, since it uses less digits than its factorization.

1155804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1155804 is about 1075.0832525902. The cubic root of 1155804 is about 104.9449144165.

The spelling of 1155804 in words is "one million, one hundred fifty-five thousand, eight hundred four".