18868234 has 48 divisors (see below), whose sum is σ = 37526976. Its totient is φ = 7022400.

The previous prime is 18868231. The next prime is 18868279. The reversal of 18868234 is 43286881.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24414 + ... + 25174.

It is an arithmetic number, because the mean of its divisors is an integer number (781812).

Almost surely, 2^18868234 is an apocalyptic number.

18868234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18868234 is a deficient number, since it is larger than the sum of its proper divisors (18658742).

18868234 is a wasteful number, since it uses less digits than its factorization.

18868234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 804 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 18868234 is about 4343.7580503523. The cubic root of 18868234 is about 266.2218831940.

The spelling of 18868234 in words is "eighteen million, eight hundred sixty-eight thousand, two hundred thirty-four".