211804968 has 16 divisors (see below), whose sum is σ = 529512480. Its totient is φ = 70601648.

The previous prime is 211804939. The next prime is 211804969. The reversal of 211804968 is 869408112.

It is a super-2 number, since 2×211804968² = 89722688938962048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211804969) 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, 4412580 + ... + 4412627.

It is an arithmetic number, because the mean of its divisors is an integer number (33094530).

Almost surely, 2^211804968 is an apocalyptic number.

It is an amenable number.

211804968 is an abundant number, since it is smaller than the sum of its proper divisors (317707512).

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

211804968 is a wasteful number, since it uses less digits than its factorization.

211804968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8825216 (or 8825212 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 211804968 is about 14553.5208111302. The cubic root of 211804968 is about 596.0902900610.

The spelling of 211804968 in words is "two hundred eleven million, eight hundred four thousand, nine hundred sixty-eight".