18646068 has 72 divisors (see below), whose sum is σ = 53306400. Its totient is φ = 5044032.

The previous prime is 18646027. The next prime is 18646073. The reversal of 18646068 is 86064681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10338 + ... + 12006.

Almost surely, 2^18646068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18646068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26653200).

18646068 is an abundant number, since it is smaller than the sum of its proper divisors (34660332).

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

18646068 is a wasteful number, since it uses less digits than its factorization.

18646068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709 (or 1700 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 18646068 is about 4318.1093084821. The cubic root of 18646068 is about 265.1728692879.

The spelling of 18646068 in words is "eighteen million, six hundred forty-six thousand, sixty-eight".