1804536 has 48 divisors (see below), whose sum is σ = 4970160. Its totient is φ = 591360.

The previous prime is 1804529. The next prime is 1804547. The reversal of 1804536 is 6354081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4936 + ... + 5288.

It is an arithmetic number, because the mean of its divisors is an integer number (103545).

2^1804536 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 1804536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2485080).

1804536 is an abundant number, since it is smaller than the sum of its proper divisors (3165624).

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

1804536 is a wasteful number, since it uses less digits than its factorization.

1804536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1804536 is about 1343.3301902362. The cubic root of 1804536 is about 121.7461351929.

It can be divided in two parts, 18045 and 36, that added together give a palindrome (18081).

The spelling of 1804536 in words is "one million, eight hundred four thousand, five hundred thirty-six".