212538318 has 16 divisors (see below), whose sum is σ = 450081360. Its totient is φ = 66678656.

The previous prime is 212538299. The next prime is 212538343. The reversal of 212538318 is 813835212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1041753 + ... + 1041956.

It is an arithmetic number, because the mean of its divisors is an integer number (28130085).

Almost surely, 2^212538318 is an apocalyptic number.

212538318 is an abundant number, since it is smaller than the sum of its proper divisors (237543042).

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

212538318 is a wasteful number, since it uses less digits than its factorization.

212538318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083731.

The product of its digits is 11520, while the sum is 33.

The square root of 212538318 is about 14578.6939744272. The cubic root of 212538318 is about 596.7774619562. Note that the first 3 decimals are identical.

The spelling of 212538318 in words is "two hundred twelve million, five hundred thirty-eight thousand, three hundred eighteen".