211043412 has 144 divisors (see below), whose sum is σ = 597542400. Its totient is φ = 62519040.

The previous prime is 211043387. The next prime is 211043429. The reversal of 211043412 is 214340112.

211043412 is a `hidden beast` number, since 211 + 0 + 43 + 412 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 784414 + ... + 784682.

It is an arithmetic number, because the mean of its divisors is an integer number (4149600).

Almost surely, 2^211043412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211043412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298771200).

211043412 is an abundant number, since it is smaller than the sum of its proper divisors (386498988).

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

211043412 is a wasteful number, since it uses less digits than its factorization.

211043412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 211043412 is about 14527.3332721460. Note that the first 3 decimals coincide. The cubic root of 211043412 is about 595.3750073411.

Adding to 211043412 its reverse (214340112), we get a palindrome (425383524).

The spelling of 211043412 in words is "two hundred eleven million, forty-three thousand, four hundred twelve".