211442232 has 16 divisors (see below), whose sum is σ = 528605640. Its totient is φ = 70480736.

The previous prime is 211442221. The next prime is 211442239. The reversal of 211442232 is 232244112.

It is a super-3 number, since 3×211442232³ (a number of 26 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 211442199 and 211442208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211442239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4405023 + ... + 4405070.

Almost surely, 2^211442232 is an apocalyptic number.

It is an amenable number.

211442232 is an abundant number, since it is smaller than the sum of its proper divisors (317163408).

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

211442232 is a wasteful number, since it uses less digits than its factorization.

211442232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8810102 (or 8810098 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 211442232 is about 14541.0533318601. The cubic root of 211442232 is about 595.7498086559.

Adding to 211442232 its reverse (232244112), we get a palindrome (443686344).

The spelling of 211442232 in words is "two hundred eleven million, four hundred forty-two thousand, two hundred thirty-two".