211434412 has 36 divisors (see below), whose sum is σ = 433224624. Its totient is φ = 90024480.

The previous prime is 211434407. The next prime is 211434439. The reversal of 211434412 is 214434112.

It is a happy 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, 27337 + ... + 34207.

Almost surely, 2^211434412 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 211434412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216612312).

211434412 is an abundant number, since it is smaller than the sum of its proper divisors (221790212).

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

211434412 is a wasteful number, since it uses less digits than its factorization.

211434412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7046 (or 7037 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 211434412 is about 14540.7844355110. The cubic root of 211434412 is about 595.7424641425.

Adding to 211434412 its reverse (214434112), we get a palindrome (425868524).

The spelling of 211434412 in words is "two hundred eleven million, four hundred thirty-four thousand, four hundred twelve".