211345436 has 24 divisors (see below), whose sum is σ = 406250880. Its totient is φ = 95757552.

The previous prime is 211345427. The next prime is 211345451. The reversal of 211345436 is 634543112.

211345436 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211345399 and 211345408.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 58706 + ... + 62201.

It is an arithmetic number, because the mean of its divisors is an integer number (16927120).

Almost surely, 2^211345436 is an apocalyptic number.

It is an amenable number.

211345436 is a deficient number, since it is larger than the sum of its proper divisors (194905444).

211345436 is a wasteful number, since it uses less digits than its factorization.

211345436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120953 (or 120951 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 211345436 is about 14537.7245812404. The cubic root of 211345436 is about 595.6588854759.

Adding to 211345436 its reverse (634543112), we get a palindrome (845888548).

The spelling of 211345436 in words is "two hundred eleven million, three hundred forty-five thousand, four hundred thirty-six".