211340412 has 36 divisors (see below), whose sum is σ = 535001376. Its totient is φ = 70344000.

The previous prime is 211340407. The next prime is 211340431. The reversal of 211340412 is 214043112.

211340412 is a `hidden beast` number, since 211 + 3 + 40 + 412 = 666.

211340412 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 23128 + ... + 30944.

Almost surely, 2^211340412 is an apocalyptic number.

It is an amenable number.

211340412 is an abundant number, since it is smaller than the sum of its proper divisors (323660964).

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

211340412 is a wasteful number, since it uses less digits than its factorization.

211340412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8578 (or 8573 counting only the distinct ones).

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

The square root of 211340412 is about 14537.5517883858. The cubic root of 211340412 is about 595.6541655349.

Adding to 211340412 its reverse (214043112), we get a palindrome (425383524).

The spelling of 211340412 in words is "two hundred eleven million, three hundred forty thousand, four hundred twelve".