1813384 has 16 divisors (see below), whose sum is σ = 3442320. Its totient is φ = 895440.

The previous prime is 1813369. The next prime is 1813387. The reversal of 1813384 is 4833181.

It is not an unprimeable number, because it can be changed into a prime (1813387) 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, 702 + ... + 2029.

It is an arithmetic number, because the mean of its divisors is an integer number (215145).

2^1813384 is an apocalyptic number.

It is an amenable number.

1813384 is a deficient number, since it is larger than the sum of its proper divisors (1628936).

1813384 is a wasteful number, since it uses less digits than its factorization.

1813384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820 (or 2816 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 1813384 is about 1346.6194711202. The cubic root of 1813384 is about 121.9447927228.

It can be divided in two parts, 1813 and 384, that added together give a cube (2197 = 13³).

The spelling of 1813384 in words is "one million, eight hundred thirteen thousand, three hundred eighty-four".