18389848 has 8 divisors (see below), whose sum is σ = 34480980. Its totient is φ = 9194920.

The previous prime is 18389821. The next prime is 18389879. The reversal of 18389848 is 84898381.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1149358 + ... + 1149373.

Almost surely, 2^18389848 is an apocalyptic number.

It is an amenable number.

18389848 is a deficient number, since it is larger than the sum of its proper divisors (16091132).

18389848 is a wasteful number, since it uses less digits than its factorization.

18389848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298737 (or 2298733 counting only the distinct ones).

The product of its digits is 442368, while the sum is 49.

The square root of 18389848 is about 4288.3386060338. The cubic root of 18389848 is about 263.9526621582.

The spelling of 18389848 in words is "eighteen million, three hundred eighty-nine thousand, eight hundred forty-eight".