211042928 has 20 divisors (see below), whose sum is σ = 409237200. Its totient is φ = 105433344.

The previous prime is 211042921. The next prime is 211042939. The reversal of 211042928 is 829240112.

It is a self number, because there is not a number n which added to its sum of digits gives 211042928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211042921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17048 + ... + 26696.

It is an arithmetic number, because the mean of its divisors is an integer number (20461860).

Almost surely, 2^211042928 is an apocalyptic number.

It is an amenable number.

211042928 is a deficient number, since it is larger than the sum of its proper divisors (198194272).

211042928 is a wasteful number, since it uses less digits than its factorization.

211042928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11024 (or 11018 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 211042928 is about 14527.3166138830. The cubic root of 211042928 is about 595.3745522030.

The spelling of 211042928 in words is "two hundred eleven million, forty-two thousand, nine hundred twenty-eight".