212838369 has 8 divisors (see below), whose sum is σ = 284493792. Its totient is φ = 141537600.

The previous prime is 212838299. The next prime is 212838371. The reversal of 212838369 is 963838212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212838369 - 2²³ = 204449761 is a prime.

It is a super-2 number, since 2×212838369² = 90600342637160322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212838369.

It is not an unprimeable number, because it can be changed into a prime (212830369) 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 7 ways as a sum of consecutive naturals, for example, 87259 + ... + 89664.

It is an arithmetic number, because the mean of its divisors is an integer number (35561724).

Almost surely, 2^212838369 is an apocalyptic number.

It is an amenable number.

212838369 is a deficient number, since it is larger than the sum of its proper divisors (71655423).

212838369 is a wasteful number, since it uses less digits than its factorization.

212838369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177327.

The product of its digits is 124416, while the sum is 42.

The square root of 212838369 is about 14588.9810816246. The cubic root of 212838369 is about 597.0581634591.

The spelling of 212838369 in words is "two hundred twelve million, eight hundred thirty-eight thousand, three hundred sixty-nine".