1805364 has 72 divisors (see below), whose sum is σ = 5136768. Its totient is φ = 529920.

The previous prime is 1805359. The next prime is 1805369. The reversal of 1805364 is 4635081.

It is an interprime number because it is at equal distance from previous prime (1805359) and next prime (1805369).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1805369) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18564 + ... + 18660.

It is an arithmetic number, because the mean of its divisors is an integer number (71344).

2^1805364 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 1805364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2568384).

1805364 is an abundant number, since it is smaller than the sum of its proper divisors (3331404).

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

1805364 is a wasteful number, since it uses less digits than its factorization.

1805364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 160 counting only the distinct ones).

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

The square root of 1805364 is about 1343.6383441983. The cubic root of 1805364 is about 121.7647531619.

The spelling of 1805364 in words is "one million, eight hundred five thousand, three hundred sixty-four".