211456230 has 32 divisors (see below), whose sum is σ = 507877344. Its totient is φ = 56345856.

The previous prime is 211456213. The next prime is 211456249. The reversal of 211456230 is 32654112.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211456230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77652 + ... + 80328.

It is an arithmetic number, because the mean of its divisors is an integer number (15871167).

Almost surely, 2^211456230 is an apocalyptic number.

211456230 is an abundant number, since it is smaller than the sum of its proper divisors (296421114).

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

211456230 is a wasteful number, since it uses less digits than its factorization.

211456230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 211456230 is about 14541.5346507857. The cubic root of 211456230 is about 595.7629550706.

The spelling of 211456230 in words is "two hundred eleven million, four hundred fifty-six thousand, two hundred thirty".