1836396 has 36 divisors (see below), whose sum is σ = 4804800. Its totient is φ = 590688.

The previous prime is 1836383. The next prime is 1836413. The reversal of 1836396 is 6936381.

It is a happy number.

1836396 is a `hidden beast` number, since 18 + 3 + 639 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1836396.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165 + ... + 1923.

2^1836396 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 1836396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2402400).

1836396 is an abundant number, since it is smaller than the sum of its proper divisors (2968404).

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

1836396 is a wasteful number, since it uses less digits than its factorization.

1836396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798 (or 1793 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1836396 is about 1355.1368934539. The cubic root of 1836396 is about 122.4584559945.

The spelling of 1836396 in words is "one million, eight hundred thirty-six thousand, three hundred ninety-six".