18414666 has 12 divisors (see below), whose sum is σ = 39898482. Its totient is φ = 6138216.

The previous prime is 18414661. The next prime is 18414673. The reversal of 18414666 is 66641481.

It can be written as a sum of positive squares in only one way, i.e., 17464041 + 950625 = 4179^2 + 975^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18414666.

It is not an unprimeable number, because it can be changed into a prime (18414661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 511501 + ... + 511536.

Almost surely, 2^18414666 is an apocalyptic number.

18414666 is an abundant number, since it is smaller than the sum of its proper divisors (21483816).

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

18414666 is a wasteful number, since it uses less digits than its factorization.

18414666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023045 (or 1023042 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 18414666 is about 4291.2312918322. The cubic root of 18414666 is about 264.0713477959.

The spelling of 18414666 in words is "eighteen million, four hundred fourteen thousand, six hundred sixty-six".