1836480 has 56 divisors (see below), whose sum is σ = 5833872. Its totient is φ = 489472.

The previous prime is 1836479. The next prime is 1836511. The reversal of 1836480 is 846381.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 7 ways as a sum of consecutive naturals, for example, 4 + ... + 1916.

2^1836480 is an apocalyptic number.

1836480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1836480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2916936).

1836480 is an abundant number, since it is smaller than the sum of its proper divisors (3997392).

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

1836480 is a wasteful number, since it uses less digits than its factorization.

1836480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933 (or 1923 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1836480 is about 1355.1678862783. The cubic root of 1836480 is about 122.4603231215.

1836480 divided by its sum of digits (30) gives a palindrome (61216).

Subtracting from 1836480 its reverse (846381), we obtain a palindrome (990099).

The spelling of 1836480 in words is "one million, eight hundred thirty-six thousand, four hundred eighty".