212434512 has 80 divisors (see below), whose sum is σ = 573713280. Its totient is φ = 67648000.

The previous prime is 212434471. The next prime is 212434531. The reversal of 212434512 is 215434212.

212434512 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 139837 + ... + 141347.

It is an arithmetic number, because the mean of its divisors is an integer number (7171416).

Almost surely, 2^212434512 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 212434512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286856640).

212434512 is an abundant number, since it is smaller than the sum of its proper divisors (361278768).

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

212434512 is a wasteful number, since it uses less digits than its factorization.

212434512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652 (or 1646 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 212434512 is about 14575.1333441585. The cubic root of 212434512 is about 596.6802886244.

Adding to 212434512 its reverse (215434212), we get a palindrome (427868724).

The spelling of 212434512 in words is "two hundred twelve million, four hundred thirty-four thousand, five hundred twelve".