211442344 has 16 divisors (see below), whose sum is σ = 398116800. Its totient is φ = 105277872.

The previous prime is 211442333. The next prime is 211442347. The reversal of 211442344 is 443244112.

It is not an unprimeable number, because it can be changed into a prime (211442347) 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, 53382 + ... + 57205.

It is an arithmetic number, because the mean of its divisors is an integer number (24882300).

Almost surely, 2^211442344 is an apocalyptic number.

It is an amenable number.

211442344 is a deficient number, since it is larger than the sum of its proper divisors (186674456).

211442344 is a wasteful number, since it uses less digits than its factorization.

211442344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110832 (or 110828 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 211442344 is about 14541.0571830249. The cubic root of 211442344 is about 595.7499138445.

Adding to 211442344 its reverse (443244112), we get a palindrome (654686456).

The spelling of 211442344 in words is "two hundred eleven million, four hundred forty-two thousand, three hundred forty-four".