1918328 has 16 divisors (see below), whose sum is σ = 3656760. Its totient is φ = 943200.

The previous prime is 1918327. The next prime is 1918351. The reversal of 1918328 is 8238191.

It is a junction number, because it is equal to n+sod(n) for n = 1918294 and 1918303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918327) 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, 1478 + ... + 2453.

2^1918328 is an apocalyptic number.

It is an amenable number.

1918328 is a deficient number, since it is larger than the sum of its proper divisors (1738432).

1918328 is a wasteful number, since it uses less digits than its factorization.

1918328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3998 (or 3994 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 1918328 is about 1385.0371836164. The cubic root of 1918328 is about 124.2532113384.

The spelling of 1918328 in words is "one million, nine hundred eighteen thousand, three hundred twenty-eight".