1811324 has 6 divisors (see below), whose sum is σ = 3169824. Its totient is φ = 905660.

The previous prime is 1811323. The next prime is 1811347. The reversal of 1811324 is 4231181.

It is a junction number, because it is equal to n+sod(n) for n = 1811296 and 1811305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1811321) 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 as a sum of consecutive naturals, namely, 226412 + ... + 226419.

It is an arithmetic number, because the mean of its divisors is an integer number (528304).

2^1811324 is an apocalyptic number.

It is an amenable number.

1811324 is a deficient number, since it is larger than the sum of its proper divisors (1358500).

1811324 is a wasteful number, since it uses less digits than its factorization.

1811324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452835 (or 452833 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 1811324 is about 1345.8543754805. The cubic root of 1811324 is about 121.8985988928.

The spelling of 1811324 in words is "one million, eight hundred eleven thousand, three hundred twenty-four".