18389068 has 12 divisors (see below), whose sum is σ = 32237352. Its totient is φ = 9178400.

The previous prime is 18389051. The next prime is 18389069. The reversal of 18389068 is 86098381.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18389069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258 + ... + 6193.

It is an arithmetic number, because the mean of its divisors is an integer number (2686446).

Almost surely, 2^18389068 is an apocalyptic number.

It is an amenable number.

18389068 is a deficient number, since it is larger than the sum of its proper divisors (13848284).

18389068 is a wasteful number, since it uses less digits than its factorization.

18389068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8072 (or 8070 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 18389068 is about 4288.2476607584. The cubic root of 18389068 is about 263.9489302806.

The spelling of 18389068 in words is "eighteen million, three hundred eighty-nine thousand, sixty-eight".