212020384 has 48 divisors (see below), whose sum is σ = 433472256. Its totient is φ = 102009600.

The previous prime is 212020357. The next prime is 212020399. The reversal of 212020384 is 483020212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90589 + ... + 92899.

It is an arithmetic number, because the mean of its divisors is an integer number (9030672).

Almost surely, 2^212020384 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 212020384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216736128).

212020384 is an abundant number, since it is smaller than the sum of its proper divisors (221451872).

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

212020384 is a wasteful number, since it uses less digits than its factorization.

212020384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429 (or 2421 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 212020384 is about 14560.9197511696. The cubic root of 212020384 is about 596.2923059053.

Adding to 212020384 its reverse (483020212), we get a palindrome (695040596).

The spelling of 212020384 in words is "two hundred twelve million, twenty thousand, three hundred eighty-four".