212098380 has 96 divisors (see below), whose sum is σ = 643742400. Its totient is φ = 52176384.

The previous prime is 212098339. The next prime is 212098417. The reversal of 212098380 is 83890212.

212098380 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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131016 + ... + 132624.

It is an arithmetic number, because the mean of its divisors is an integer number (6705650).

Almost surely, 2^212098380 is an apocalyptic number.

212098380 is a gapful number since it is divisible by the number (20) 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 212098380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321871200).

212098380 is an abundant number, since it is smaller than the sum of its proper divisors (431644020).

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

212098380 is a wasteful number, since it uses less digits than its factorization.

212098380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660 (or 1632 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 212098380 is about 14563.5977697820. The cubic root of 212098380 is about 596.3654163487.

The spelling of 212098380 in words is "two hundred twelve million, ninety-eight thousand, three hundred eighty".