18806348 has 12 divisors (see below), whose sum is σ = 35903112. Its totient is φ = 8548320.

The previous prime is 18806339. The next prime is 18806353. The reversal of 18806348 is 84360881.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213665 + ... + 213752.

It is an arithmetic number, because the mean of its divisors is an integer number (2991926).

Almost surely, 2^18806348 is an apocalyptic number.

It is an amenable number.

18806348 is a deficient number, since it is larger than the sum of its proper divisors (17096764).

18806348 is a wasteful number, since it uses less digits than its factorization.

18806348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427432 (or 427430 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 18806348 is about 4336.6286444657. The cubic root of 18806348 is about 265.9305036379.

It can be divided in two parts, 1880 and 6348, that added together give a palindrome (8228).

The spelling of 18806348 in words is "eighteen million, eight hundred six thousand, three hundred forty-eight".