212943768 has 64 divisors (see below), whose sum is σ = 571691520. Its totient is φ = 65856000.

The previous prime is 212943749. The next prime is 212943779. The reversal of 212943768 is 867349212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25293 + ... + 32643.

It is an arithmetic number, because the mean of its divisors is an integer number (8932680).

Almost surely, 2^212943768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212943768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285845760).

212943768 is an abundant number, since it is smaller than the sum of its proper divisors (358747752).

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

212943768 is a wasteful number, since it uses less digits than its factorization.

212943768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7448 (or 7444 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 212943768 is about 14592.5929155856. The cubic root of 212943768 is about 597.1567029421.

The spelling of 212943768 in words is "two hundred twelve million, nine hundred forty-three thousand, seven hundred sixty-eight".