211494216 has 32 divisors (see below), whose sum is σ = 546969600. Its totient is φ = 68066880.

The previous prime is 211494211. The next prime is 211494271. The reversal of 211494216 is 612494112.

211494216 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (211494211) 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, 151240 + ... + 152631.

It is an arithmetic number, because the mean of its divisors is an integer number (17092800).

Almost surely, 2^211494216 is an apocalyptic number.

It is an amenable number.

211494216 is an abundant number, since it is smaller than the sum of its proper divisors (335475384).

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

211494216 is a wasteful number, since it uses less digits than its factorization.

211494216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303909 (or 303905 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 211494216 is about 14542.8407128731. The cubic root of 211494216 is about 595.7986272230.

The spelling of 211494216 in words is "two hundred eleven million, four hundred ninety-four thousand, two hundred sixteen".