1808328 has 16 divisors (see below), whose sum is σ = 4520880. Its totient is φ = 602768.

The previous prime is 1808327. The next prime is 1808377. The reversal of 1808328 is 8238081.

It is a junction number, because it is equal to n+sod(n) for n = 1808295 and 1808304.

It is not an unprimeable number, because it can be changed into a prime (1808327) 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, 37650 + ... + 37697.

It is an arithmetic number, because the mean of its divisors is an integer number (282555).

2^1808328 is an apocalyptic number.

It is an amenable number.

1808328 is an abundant number, since it is smaller than the sum of its proper divisors (2712552).

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

1808328 is a wasteful number, since it uses less digits than its factorization.

1808328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75356 (or 75352 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1808328 is about 1344.7408672306. The cubic root of 1808328 is about 121.8313534702.

The spelling of 1808328 in words is "one million, eight hundred eight thousand, three hundred twenty-eight".