1185828 has 48 divisors (see below), whose sum is σ = 3333120. Its totient is φ = 320544.

The previous prime is 1185827. The next prime is 1185851. The reversal of 1185828 is 8285811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1185823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1225 + ... + 1967.

It is an arithmetic number, because the mean of its divisors is an integer number (69440).

2^1185828 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 1185828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1666560).

1185828 is an abundant number, since it is smaller than the sum of its proper divisors (2147292).

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

1185828 is a wasteful number, since it uses less digits than its factorization.

1185828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776 (or 774 counting only the distinct ones).

The product of its digits is 5120, while the sum is 33.

The square root of 1185828 is about 1088.9572994383. The cubic root of 1185828 is about 105.8458659320.

The spelling of 1185828 in words is "one million, one hundred eighty-five thousand, eight hundred twenty-eight".