211044 has 24 divisors (see below), whose sum is σ = 505120. Its totient is φ = 68544.

The previous prime is 211039. The next prime is 211049. The reversal of 211044 is 440112.

It is an interprime number because it is at equal distance from previous prime (211039) and next prime (211049).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (211049) by changing a digit.

211044 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312 + ... + 720.

2²¹¹⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

211044 is an abundant number, since it is smaller than the sum of its proper divisors (294076).

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

211044 is a wasteful number, since it uses less digits than its factorization.

211044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 211044 is about 459.3952546555. The cubic root of 211044 is about 59.5375560277.

Adding to 211044 its reverse (440112), we get a palindrome (651156).

The spelling of 211044 in words is "two hundred eleven thousand, forty-four", and thus it is an iban number.