18868252 has 12 divisors (see below), whose sum is σ = 35559496. Its totient is φ = 8708400.

The previous prime is 18868231. The next prime is 18868279. The reversal of 18868252 is 25286881.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181374 + ... + 181477.

Almost surely, 2^18868252 is an apocalyptic number.

It is an amenable number.

18868252 is a deficient number, since it is larger than the sum of its proper divisors (16691244).

18868252 is a wasteful number, since it uses less digits than its factorization.

18868252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362868 (or 362866 counting only the distinct ones).

The product of its digits is 61440, while the sum is 40.

The square root of 18868252 is about 4343.7601222904. The cubic root of 18868252 is about 266.2219678511.

The spelling of 18868252 in words is "eighteen million, eight hundred sixty-eight thousand, two hundred fifty-two".