211384449 has 12 divisors (see below), whose sum is σ = 305792916. Its totient is φ = 140710752.

The previous prime is 211384429. The next prime is 211384457. The reversal of 211384449 is 944483112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 185831424 + 25553025 = 13632^2 + 5055^2 .

It is not a de Polignac number, because 211384449 - 2⁹ = 211383937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211384429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11254 + ... + 23439.

It is an arithmetic number, because the mean of its divisors is an integer number (25482743).

Almost surely, 2^211384449 is an apocalyptic number.

It is an amenable number.

211384449 is a deficient number, since it is larger than the sum of its proper divisors (94408467).

211384449 is a wasteful number, since it uses less digits than its factorization.

211384449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35376 (or 35373 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 211384449 is about 14539.0663042714. The cubic root of 211384449 is about 595.6955348129.

The spelling of 211384449 in words is "two hundred eleven million, three hundred eighty-four thousand, four hundred forty-nine".