212004234 has 48 divisors (see below), whose sum is σ = 497630952. Its totient is φ = 64842624.

The previous prime is 212004227. The next prime is 212004251. The reversal of 212004234 is 432400212.

212004234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 207273609 + 4730625 = 14397^2 + 2175^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37864 + ... + 43100.

Almost surely, 2^212004234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212004234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248815476).

212004234 is an abundant number, since it is smaller than the sum of its proper divisors (285626718).

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

212004234 is a wasteful number, since it uses less digits than its factorization.

212004234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5431 (or 5428 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 212004234 is about 14560.3651739920. The cubic root of 212004234 is about 596.2771652774.

Adding to 212004234 its reverse (432400212), we get a palindrome (644404446).

The spelling of 212004234 in words is "two hundred twelve million, four thousand, two hundred thirty-four".