212430620 has 24 divisors (see below), whose sum is σ = 446454288. Its totient is φ = 84905600.

The previous prime is 212430619. The next prime is 212430643. The reversal of 212430620 is 26034212.

212430620 is digitally balanced in base 3, 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 (20).

It is a junction number, because it is equal to n+sod(n) for n = 212430592 and 212430601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28040 + ... + 34800.

It is an arithmetic number, because the mean of its divisors is an integer number (18602262).

Almost surely, 2^212430620 is an apocalyptic number.

212430620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212430620 is an abundant number, since it is smaller than the sum of its proper divisors (234023668).

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

212430620 is a wasteful number, since it uses less digits than its factorization.

212430620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8341 (or 8339 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 212430620 is about 14574.9998284734. Note that the first 3 decimals coincide. The cubic root of 212430620 is about 596.6766446875.

Adding to 212430620 its reverse (26034212), we get a palindrome (238464832).

The spelling of 212430620 in words is "two hundred twelve million, four hundred thirty thousand, six hundred twenty".