18805252 has 12 divisors (see below), whose sum is σ = 33033420. Its totient is φ = 9367136.

The previous prime is 18805243. The next prime is 18805261. The reversal of 18805252 is 25250881.

It is an interprime number because it is at equal distance from previous prime (18805243) and next prime (18805261).

It can be written as a sum of positive squares in 2 ways, for example, as 1382976 + 17422276 = 1176^2 + 4174^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 7663 + ... + 9814.

It is an arithmetic number, because the mean of its divisors is an integer number (2752785).

Almost surely, 2^18805252 is an apocalyptic number.

It is an amenable number.

18805252 is a deficient number, since it is larger than the sum of its proper divisors (14228168).

18805252 is a wasteful number, since it uses less digits than its factorization.

18805252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17750 (or 17748 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 18805252 is about 4336.5022771815. The cubic root of 18805252 is about 265.9253375543.

The spelling of 18805252 in words is "eighteen million, eight hundred five thousand, two hundred fifty-two".