418668 has 24 divisors (see below), whose sum is σ = 987840. Its totient is φ = 138000.

The previous prime is 418667. The next prime is 418699. The reversal of 418668 is 866814.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 418668.

It is not an unprimeable number, because it can be changed into a prime (418667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543 + ... + 1793.

It is an arithmetic number, because the mean of its divisors is an integer number (41160).

2⁴¹⁸⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

418668 is an abundant number, since it is smaller than the sum of its proper divisors (569172).

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

418668 is a wasteful number, since it uses less digits than its factorization.

418668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 395 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 418668 is about 647.0455934476. The cubic root of 418668 is about 74.8094719529.

The spelling of 418668 in words is "four hundred eighteen thousand, six hundred sixty-eight".