212634912 has 144 divisors (see below), whose sum is σ = 687748320. Its totient is φ = 57157632.

The previous prime is 212634869. The next prime is 212634923. The reversal of 212634912 is 219436212.

It is a self number, because there is not a number n which added to its sum of digits gives 212634912.

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 23 ways as a sum of consecutive naturals, for example, 78639 + ... + 81297.

It is an arithmetic number, because the mean of its divisors is an integer number (4776030).

Almost surely, 2^212634912 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 212634912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343874160).

212634912 is an abundant number, since it is smaller than the sum of its proper divisors (475113408).

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

212634912 is a wasteful number, since it uses less digits than its factorization.

212634912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703 (or 2688 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 212634912 is about 14582.0064463022. The cubic root of 212634912 is about 596.8678556823.

The spelling of 212634912 in words is "two hundred twelve million, six hundred thirty-four thousand, nine hundred twelve".