212030424 has 192 divisors, whose sum is σ = 640224000. Its totient is φ = 63141120.

The previous prime is 212030417. The next prime is 212030447. The reversal of 212030424 is 424030212.

212030424 is a `hidden beast` number, since 212 + 0 + 30 + 424 = 666.

212030424 is digitally balanced in base 2, because in such base 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 (18).

It is a junction number, because it is equal to n+sod(n) for n = 212030397 and 212030406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2986309 + ... + 2986379.

It is an arithmetic number, because the mean of its divisors is an integer number (3334500).

Almost surely, 2^212030424 is an apocalyptic number.

212030424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212030424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320112000).

212030424 is an abundant number, since it is smaller than the sum of its proper divisors (428193576).

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

212030424 is a wasteful number, since it uses less digits than its factorization.

212030424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 191 counting only the distinct ones).

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

The square root of 212030424 is about 14561.2645055297. The cubic root of 212030424 is about 596.3017180196.

Adding to 212030424 its reverse (424030212), we get a palindrome (636060636).

The spelling of 212030424 in words is "two hundred twelve million, thirty thousand, four hundred twenty-four".