212318256 has 80 divisors (see below), whose sum is σ = 572407808. Its totient is φ = 67737600.

The previous prime is 212318207. The next prime is 212318257. The reversal of 212318256 is 652813212.

It is not an unprimeable number, because it can be changed into a prime (212318257) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 143601 + ... + 145071.

Almost surely, 2^212318256 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 212318256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286203904).

212318256 is an abundant number, since it is smaller than the sum of its proper divisors (360089552).

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

212318256 is a wasteful number, since it uses less digits than its factorization.

212318256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610 (or 1604 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 212318256 is about 14571.1446358891. The cubic root of 212318256 is about 596.5714231976.

The spelling of 212318256 in words is "two hundred twelve million, three hundred eighteen thousand, two hundred fifty-six".