212075238 has 16 divisors (see below), whose sum is σ = 449100720. Its totient is φ = 66533376.

The previous prime is 212075197. The next prime is 212075239. The reversal of 212075238 is 832570212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212075239) by changing a digit.

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, 1039483 + ... + 1039686.

It is an arithmetic number, because the mean of its divisors is an integer number (28068795).

Almost surely, 2^212075238 is an apocalyptic number.

212075238 is an abundant number, since it is smaller than the sum of its proper divisors (237025482).

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

212075238 is a wasteful number, since it uses less digits than its factorization.

212075238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079191.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 212075238 is about 14562.8032328944. The cubic root of 212075238 is about 596.3437258004.

The spelling of 212075238 in words is "two hundred twelve million, seventy-five thousand, two hundred thirty-eight".