618212 has 12 divisors (see below), whose sum is σ = 1236480. Its totient is φ = 264936.

The previous prime is 618199. The next prime is 618227. The reversal of 618212 is 212816.

618212 is an admirable number.

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 618212.

It is an unprimeable number.

618212 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11012 + ... + 11067.

It is an arithmetic number, because the mean of its divisors is an integer number (103040).

2⁶¹⁸²¹² is an apocalyptic number.

It is an amenable number.

618212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

618212 is a wasteful number, since it uses less digits than its factorization.

618212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22090 (or 22088 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 618212 is about 786.2645865102. The cubic root of 618212 is about 85.1881415016.

The spelling of 618212 in words is "six hundred eighteen thousand, two hundred twelve".