211040238 has 16 divisors (see below), whose sum is σ = 424609920. Its totient is φ = 69925176.

The previous prime is 211040237. The next prime is 211040251. The reversal of 211040238 is 832040112.

211040238 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211040233) 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, 104308 + ... + 106311.

It is an arithmetic number, because the mean of its divisors is an integer number (26538120).

Almost surely, 2^211040238 is an apocalyptic number.

211040238 is an abundant number, since it is smaller than the sum of its proper divisors (213569682).

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

211040238 is a wasteful number, since it uses less digits than its factorization.

211040238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210791.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 211040238 is about 14527.2240293870. The cubic root of 211040238 is about 595.3720226002.

The spelling of 211040238 in words is "two hundred eleven million, forty thousand, two hundred thirty-eight".