211044430 has 32 divisors (see below), whose sum is σ = 391099104. Its totient is φ = 81949056.

The previous prime is 211044391. The next prime is 211044433. The reversal of 211044430 is 34440112.

It is a junction number, because it is equal to n+sod(n) for n = 211044398 and 211044407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211044433) 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 15 ways as a sum of consecutive naturals, for example, 72972 + ... + 75808.

It is an arithmetic number, because the mean of its divisors is an integer number (12221847).

Almost surely, 2^211044430 is an apocalyptic number.

211044430 is a deficient number, since it is larger than the sum of its proper divisors (180054674).

211044430 is a wasteful number, since it uses less digits than its factorization.

211044430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 211044430 is about 14527.3683095047. The cubic root of 211044430 is about 595.3759646335.

Adding to 211044430 its reverse (34440112), we get a palindrome (245484542).

The spelling of 211044430 in words is "two hundred eleven million, forty-four thousand, four hundred thirty".