211126828 has 12 divisors (see below), whose sum is σ = 403060392. Its totient is φ = 95966720.

The previous prime is 211126801. The next prime is 211126871. The reversal of 211126828 is 828621112.

It is a self number, because there is not a number n which added to its sum of digits gives 211126828.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2399125 + ... + 2399212.

It is an arithmetic number, because the mean of its divisors is an integer number (33588366).

Almost surely, 2^211126828 is an apocalyptic number.

It is an amenable number.

211126828 is a deficient number, since it is larger than the sum of its proper divisors (191933564).

211126828 is a wasteful number, since it uses less digits than its factorization.

211126828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798352 (or 4798350 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 211126828 is about 14530.2039903093. The cubic root of 211126828 is about 595.4534386921.

The spelling of 211126828 in words is "two hundred eleven million, one hundred twenty-six thousand, eight hundred twenty-eight".