1805536 has 24 divisors (see below), whose sum is σ = 3764880. Its totient is φ = 849408.

The previous prime is 1805521. The next prime is 1805537. The reversal of 1805536 is 6355081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1805537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1116 + ... + 2203.

It is an arithmetic number, because the mean of its divisors is an integer number (156870).

2^1805536 is an apocalyptic number.

1805536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1805536 is an abundant number, since it is smaller than the sum of its proper divisors (1959344).

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

1805536 is a wasteful number, since it uses less digits than its factorization.

1805536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346 (or 3338 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1805536 is about 1343.7023479923. The cubic root of 1805536 is about 121.7686199486.

The spelling of 1805536 in words is "one million, eight hundred five thousand, five hundred thirty-six".