211432 has 32 divisors (see below), whose sum is σ = 453600. Its totient is φ = 91584.

The previous prime is 211427. The next prime is 211433. The reversal of 211432 is 234112.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (211433) 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, 1923 + ... + 2029.

It is an arithmetic number, because the mean of its divisors is an integer number (14175).

2²¹¹⁴³² 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 211432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226800).

211432 is an abundant number, since it is smaller than the sum of its proper divisors (242168).

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

211432 is a wasteful number, since it uses less digits than its factorization.

211432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 141 counting only the distinct ones).

The product of its digits is 48, while the sum is 13.

The square root of 211432 is about 459.8173550444. The cubic root of 211432 is about 59.5740198765.

Adding to 211432 its reverse (234112), we get a palindrome (445544).

The spelling of 211432 in words is "two hundred eleven thousand, four hundred thirty-two".