418212 has 18 divisors (see below), whose sum is σ = 1057238. Its totient is φ = 139392.

The previous prime is 418207. The next prime is 418219. The reversal of 418212 is 212814.

It can be written as a sum of positive squares in only one way, i.e., 331776 + 86436 = 576^2 + 294^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (418219) 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, 5773 + ... + 5844.

2⁴¹⁸²¹² is an apocalyptic number.

It is an amenable number.

418212 is an abundant number, since it is smaller than the sum of its proper divisors (639026).

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

418212 is a wasteful number, since it uses less digits than its factorization.

418212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11627 (or 11622 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 418212 is about 646.6931266064. The cubic root of 418212 is about 74.7823020461.

It can be divided in two parts, 418 and 212, that added together give a triangular number (630 = T₃₅).

The spelling of 418212 in words is "four hundred eighteen thousand, two hundred twelve".