13066218 has 32 divisors (see below), whose sum is σ = 31677120. Its totient is φ = 3959280.

The previous prime is 13066177. The next prime is 13066223. The reversal of 13066218 is 81266031.

13066218 is a `hidden beast` number, since 1 + 30 + 6 + 621 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 13066191 and 13066200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10405 + ... + 11592.

It is an arithmetic number, because the mean of its divisors is an integer number (989910).

Almost surely, 2^13066218 is an apocalyptic number.

13066218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13066218 is an abundant number, since it is smaller than the sum of its proper divisors (18610902).

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

13066218 is a wasteful number, since it uses less digits than its factorization.

13066218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22019 (or 22013 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13066218 is about 3614.7223959801. The cubic root of 13066218 is about 235.5320253417.

The spelling of 13066218 in words is "thirteen million, sixty-six thousand, two hundred eighteen".