18815068 has 6 divisors (see below), whose sum is σ = 32926376. Its totient is φ = 9407532.

The previous prime is 18815063. The next prime is 18815089. The reversal of 18815068 is 86051881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18815063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2351880 + ... + 2351887.

Almost surely, 2^18815068 is an apocalyptic number.

It is an amenable number.

18815068 is a deficient number, since it is larger than the sum of its proper divisors (14111308).

18815068 is a wasteful number, since it uses less digits than its factorization.

18815068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703771 (or 4703769 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 37.

The square root of 18815068 is about 4337.6339172411. The cubic root of 18815068 is about 265.9715989049.

The spelling of 18815068 in words is "eighteen million, eight hundred fifteen thousand, sixty-eight".