1836144 has 60 divisors (see below), whose sum is σ = 5280912. Its totient is φ = 595200.

The previous prime is 1836091. The next prime is 1836151. The reversal of 1836144 is 4416381.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5749 + ... + 6059.

2^1836144 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 1836144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2640456).

1836144 is an abundant number, since it is smaller than the sum of its proper divisors (3444768).

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

1836144 is a wasteful number, since it uses less digits than its factorization.

1836144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 357 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 1836144 is about 1355.0439107276. The cubic root of 1836144 is about 122.4528542719.

The spelling of 1836144 in words is "one million, eight hundred thirty-six thousand, one hundred forty-four".