212319198 has 64 divisors (see below), whose sum is σ = 580715520. Its totient is φ = 55994976.

The previous prime is 212319193. The next prime is 212319199. The reversal of 212319198 is 891913212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212319193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16690 + ... + 26517.

It is an arithmetic number, because the mean of its divisors is an integer number (9073680).

Almost surely, 2^212319198 is an apocalyptic number.

212319198 is an abundant number, since it is smaller than the sum of its proper divisors (368396322).

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

212319198 is a wasteful number, since it uses less digits than its factorization.

212319198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43238 (or 43232 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 212319198 is about 14571.1769600125. The cubic root of 212319198 is about 596.5723054729.

It can be divided in two parts, 2123 and 19198, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 212319198 in words is "two hundred twelve million, three hundred nineteen thousand, one hundred ninety-eight".