212538256 has 40 divisors (see below), whose sum is σ = 495394880. Its totient is φ = 86292864.

The previous prime is 212538253. The next prime is 212538269. The reversal of 212538256 is 652835212.

212538256 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212538253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47811 + ... + 52066.

It is an arithmetic number, because the mean of its divisors is an integer number (12384872).

Almost surely, 2^212538256 is an apocalyptic number.

It is an amenable number.

212538256 is an abundant number, since it is smaller than the sum of its proper divisors (282856624).

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

212538256 is a wasteful number, since it uses less digits than its factorization.

212538256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99911 (or 99905 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 212538256 is about 14578.6918480363. The cubic root of 212538256 is about 596.7774039271. Note that the first 3 decimals are identical.

The spelling of 212538256 in words is "two hundred twelve million, five hundred thirty-eight thousand, two hundred fifty-six".