212838370 has 32 divisors (see below), whose sum is σ = 393724800. Its totient is φ = 82807296.

The previous prime is 212838299. The next prime is 212838371. The reversal of 212838370 is 73838212.

It is not an unprimeable number, because it can be changed into a prime (212838371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55371 + ... + 59089.

It is an arithmetic number, because the mean of its divisors is an integer number (12303900).

Almost surely, 2^212838370 is an apocalyptic number.

212838370 is a deficient number, since it is larger than the sum of its proper divisors (180886430).

212838370 is a wasteful number, since it uses less digits than its factorization.

212838370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 212838370 is about 14588.9811158970. The cubic root of 212838370 is about 597.0581643942.

The spelling of 212838370 in words is "two hundred twelve million, eight hundred thirty-eight thousand, three hundred seventy".