18884044 has 6 divisors (see below), whose sum is σ = 33047084. Its totient is φ = 9442020.

The previous prime is 18884029. The next prime is 18884051. The reversal of 18884044 is 44048881.

It is a junction number, because it is equal to n+sod(n) for n = 18883994 and 18884012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2360502 + ... + 2360509.

Almost surely, 2^18884044 is an apocalyptic number.

It is an amenable number.

18884044 is a deficient number, since it is larger than the sum of its proper divisors (14163040).

18884044 is a wasteful number, since it uses less digits than its factorization.

18884044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721015 (or 4721013 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 37.

The square root of 18884044 is about 4345.5775220332. The cubic root of 18884044 is about 266.2962196499.

The spelling of 18884044 in words is "eighteen million, eight hundred eighty-four thousand, forty-four".