1808536 has 16 divisors (see below), whose sum is σ = 3538800. Its totient is φ = 864864.

The previous prime is 1808507. The next prime is 1808539. The reversal of 1808536 is 6358081.

It is a junction number, because it is equal to n+sod(n) for n = 1808498 and 1808507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1808539) 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, 4731 + ... + 5098.

It is an arithmetic number, because the mean of its divisors is an integer number (221175).

2^1808536 is an apocalyptic number.

It is an amenable number.

1808536 is a deficient number, since it is larger than the sum of its proper divisors (1730264).

1808536 is a wasteful number, since it uses less digits than its factorization.

1808536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9858 (or 9854 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1808536 is about 1344.8182033271. The cubic root of 1808536 is about 121.8360244425.

The spelling of 1808536 in words is "one million, eight hundred eight thousand, five hundred thirty-six".