1813328 has 20 divisors (see below), whose sum is σ = 3833088. Its totient is φ = 824160.

The previous prime is 1813327. The next prime is 1813337. The reversal of 1813328 is 8233181.

It is a junction number, because it is equal to n+sod(n) for n = 1813297 and 1813306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813321) 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, 4976 + ... + 5327.

2^1813328 is an apocalyptic number.

It is an amenable number.

1813328 is an abundant number, since it is smaller than the sum of its proper divisors (2019760).

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

1813328 is a wasteful number, since it uses less digits than its factorization.

1813328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10322 (or 10316 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 1813328 is about 1346.5986781517. The cubic root of 1813328 is about 121.9435374309.

The spelling of 1813328 in words is "one million, eight hundred thirteen thousand, three hundred twenty-eight".