1831328 has 24 divisors (see below), whose sum is σ = 3638880. Its totient is φ = 907200.

The previous prime is 1831307. The next prime is 1831331. The reversal of 1831328 is 8231381.

It is a junction number, because it is equal to n+sod(n) for n = 1831297 and 1831306.

It is an unprimeable number.

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, 4643 + ... + 5021.

It is an arithmetic number, because the mean of its divisors is an integer number (151620).

2^1831328 is an apocalyptic number.

It is an amenable number.

1831328 is a deficient number, since it is larger than the sum of its proper divisors (1807552).

1831328 is a wasteful number, since it uses less digits than its factorization.

1831328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540 (or 532 counting only the distinct ones).

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

The square root of 1831328 is about 1353.2656797540. The cubic root of 1831328 is about 122.3457004939.

The spelling of 1831328 in words is "one million, eight hundred thirty-one thousand, three hundred twenty-eight".