212430520 has 16 divisors (see below), whose sum is σ = 477968760. Its totient is φ = 84972192.

The previous prime is 212430499. The next prime is 212430529. The reversal of 212430520 is 25034212.

212430520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212430529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2655342 + ... + 2655421.

Almost surely, 2^212430520 is an apocalyptic number.

212430520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212430520 is an abundant number, since it is smaller than the sum of its proper divisors (265538240).

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

212430520 is a wasteful number, since it uses less digits than its factorization.

212430520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5310774 (or 5310770 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 212430520 is about 14574.9963979412. The cubic root of 212430520 is about 596.6765510606.

Adding to 212430520 its reverse (25034212), we get a palindrome (237464732).

The spelling of 212430520 in words is "two hundred twelve million, four hundred thirty thousand, five hundred twenty".