616435212 has 12 divisors (see below), whose sum is σ = 1438348856. Its totient is φ = 205478400.

The previous prime is 616435189. The next prime is 616435231. The reversal of 616435212 is 212534616.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 616435212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25684789 + ... + 25684812.

Almost surely, 2^616435212 is an apocalyptic number.

It is an amenable number.

616435212 is an abundant number, since it is smaller than the sum of its proper divisors (821913644).

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

616435212 is a wasteful number, since it uses less digits than its factorization.

616435212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51369608 (or 51369606 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 616435212 is about 24828.1133395190. The cubic root of 616435212 is about 851.0645080468.

Adding to 616435212 its reverse (212534616), we get a palindrome (828969828).

The spelling of 616435212 in words is "six hundred sixteen million, four hundred thirty-five thousand, two hundred twelve".