212341916 has 24 divisors (see below), whose sum is σ = 378609504. Its totient is φ = 104186880.

The previous prime is 212341907. The next prime is 212341939. The reversal of 212341916 is 619143212.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 44276 + ... + 48836.

It is an arithmetic number, because the mean of its divisors is an integer number (15775396).

Almost surely, 2^212341916 is an apocalyptic number.

It is an amenable number.

212341916 is a deficient number, since it is larger than the sum of its proper divisors (166267588).

212341916 is a wasteful number, since it uses less digits than its factorization.

212341916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4781 (or 4779 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 212341916 is about 14571.9564918373. The cubic root of 212341916 is about 596.5935823152.

The spelling of 212341916 in words is "two hundred twelve million, three hundred forty-one thousand, nine hundred sixteen".