1808474 has 8 divisors (see below), whose sum is σ = 2739360. Its totient is φ = 895356.

The previous prime is 1808459. The next prime is 1808479. The reversal of 1808474 is 4748081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1808474.

It is not an unprimeable number, because it can be changed into a prime (1808479) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4184 + ... + 4595.

It is an arithmetic number, because the mean of its divisors is an integer number (342420).

2^1808474 is an apocalyptic number.

1808474 is a deficient number, since it is larger than the sum of its proper divisors (930886).

1808474 is a wasteful number, since it uses less digits than its factorization.

1808474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8884.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 1808474 is about 1344.7951516867. The cubic root of 1808474 is about 121.8346321709.

The spelling of 1808474 in words is "one million, eight hundred eight thousand, four hundred seventy-four".