211044004 has 12 divisors (see below), whose sum is σ = 379309084. Its totient is φ = 102669984.

The previous prime is 211043999. The next prime is 211044007. The reversal of 211044004 is 400440112.

It can be written as a sum of positive squares in 2 ways, for example, as 108993600 + 102050404 = 10440^2 + 10102^2 .

It is not an unprimeable number, because it can be changed into a prime (211044007) 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 in 3 ways as a sum of consecutive naturals, for example, 712839 + ... + 713134.

Almost surely, 2^211044004 is an apocalyptic number.

It is an amenable number.

211044004 is a deficient number, since it is larger than the sum of its proper divisors (168265080).

211044004 is a wasteful number, since it uses less digits than its factorization.

211044004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426014 (or 1426012 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 211044004 is about 14527.3536475161. The cubic root of 211044004 is about 595.3755640381.

Adding to 211044004 its reverse (400440112), we get a palindrome (611484116).

The spelling of 211044004 in words is "two hundred eleven million, forty-four thousand, four".