18868235 has 8 divisors (see below), whose sum is σ = 23833680. Its totient is φ = 14300064.

The previous prime is 18868231. The next prime is 18868279. The reversal of 18868235 is 53286881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18868235 - 2² = 18868231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18868192 and 18868201.

It is not an unprimeable number, because it can be changed into a prime (18868231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 99212 + ... + 99401.

It is an arithmetic number, because the mean of its divisors is an integer number (2979210).

Almost surely, 2^18868235 is an apocalyptic number.

18868235 is a deficient number, since it is larger than the sum of its proper divisors (4965445).

18868235 is a wasteful number, since it uses less digits than its factorization.

18868235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198637.

The product of its digits is 92160, while the sum is 41.

The square root of 18868235 is about 4343.7581654600. The cubic root of 18868235 is about 266.2218878972.

The spelling of 18868235 in words is "eighteen million, eight hundred sixty-eight thousand, two hundred thirty-five".