211424344 has 8 divisors (see below), whose sum is σ = 396420660. Its totient is φ = 105712168.

The previous prime is 211424333. The next prime is 211424347. The reversal of 211424344 is 443424112.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211424347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13214014 + ... + 13214029.

Almost surely, 2^211424344 is an apocalyptic number.

It is an amenable number.

211424344 is a deficient number, since it is larger than the sum of its proper divisors (184996316).

211424344 is a wasteful number, since it uses less digits than its factorization.

211424344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26428049 (or 26428045 counting only the distinct ones).

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

The square root of 211424344 is about 14540.4382327356. The cubic root of 211424344 is about 595.7330080495.

Adding to 211424344 its reverse (443424112), we get a palindrome (654848456).

The spelling of 211424344 in words is "two hundred eleven million, four hundred twenty-four thousand, three hundred forty-four".