1804231 has 24 divisors (see below), whose sum is σ = 2264192. Its totient is φ = 1425600.

The previous prime is 1804219. The next prime is 1804249. The reversal of 1804231 is 1324081.

It is not a de Polignac number, because 1804231 - 2⁵ = 1804199 is a prime.

It is a super-4 number, since 4×1804231⁴ (a number of 26 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1804199 and 1804208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48745 + ... + 48781.

2^1804231 is an apocalyptic number.

1804231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1804231 is a deficient number, since it is larger than the sum of its proper divisors (459961).

1804231 is a wasteful number, since it uses less digits than its factorization.

1804231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1804231 is about 1343.2166616001. The cubic root of 1804231 is about 121.7392756893.

The spelling of 1804231 in words is "one million, eight hundred four thousand, two hundred thirty-one".