18697068 has 120 divisors (see below), whose sum is σ = 55210848. Its totient is φ = 5474304.

The previous prime is 18697057. The next prime is 18697139. The reversal of 18697068 is 86079681.

It is a happy 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 39 ways as a sum of consecutive naturals, for example, 96780 + ... + 96972.

Almost surely, 2^18697068 is an apocalyptic number.

18697068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18697068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27605424).

18697068 is an abundant number, since it is smaller than the sum of its proper divisors (36513780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18697068 is a wasteful number, since it uses less digits than its factorization.

18697068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 18697068 is about 4324.0106382848. The cubic root of 18697068 is about 265.4144127077.

The spelling of 18697068 in words is "eighteen million, six hundred ninety-seven thousand, sixty-eight".