18883316 has 12 divisors (see below), whose sum is σ = 33076932. Its totient is φ = 9432768.

The previous prime is 18883307. The next prime is 18883327. The reversal of 18883316 is 61338881.

It can be written as a sum of positive squares in 2 ways, for example, as 3312400 + 15570916 = 1820^2 + 3946^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18883316.

It is a congruent number.

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, 5666 + ... + 8358.

It is an arithmetic number, because the mean of its divisors is an integer number (2756411).

Almost surely, 2^18883316 is an apocalyptic number.

It is an amenable number.

18883316 is a deficient number, since it is larger than the sum of its proper divisors (14193616).

18883316 is a wasteful number, since it uses less digits than its factorization.

18883316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450 (or 4448 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 18883316 is about 4345.4937579060. The cubic root of 18883316 is about 266.2927976050.

The spelling of 18883316 in words is "eighteen million, eight hundred eighty-three thousand, three hundred sixteen".