1185444 has 72 divisors (see below), whose sum is σ = 3439800. Its totient is φ = 340992.

The previous prime is 1185439. The next prime is 1185463. The reversal of 1185444 is 4445811.

1185444 = T₁₈₇ + T₁₈₈ + ... + T₂₃₈.

It is a happy number.

1185444 is a `hidden beast` number, since 118 + 544 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19044 + 1166400 = 138^2 + 1080^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7882 + ... + 8030.

It is an arithmetic number, because the mean of its divisors is an integer number (47775).

2^1185444 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 1185444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1719900).

1185444 is an abundant number, since it is smaller than the sum of its proper divisors (2254356).

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

1185444 is a wasteful number, since it uses less digits than its factorization.

1185444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 184 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 1185444 is about 1088.7809697088. The cubic root of 1185444 is about 105.8344395418.

The spelling of 1185444 in words is "one million, one hundred eighty-five thousand, four hundred forty-four".