211324434 has 16 divisors (see below), whose sum is σ = 423309888. Its totient is φ = 70331312.

The previous prime is 211324429. The next prime is 211324439. The reversal of 211324434 is 434423112.

It is an interprime number because it is at equal distance from previous prime (211324429) and next prime (211324439).

It is not an unprimeable number, because it can be changed into a prime (211324439) 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 7 ways as a sum of consecutive naturals, for example, 23337 + ... + 31100.

It is an arithmetic number, because the mean of its divisors is an integer number (26456868).

Almost surely, 2^211324434 is an apocalyptic number.

211324434 is an abundant number, since it is smaller than the sum of its proper divisors (211985454).

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

211324434 is a wasteful number, since it uses less digits than its factorization.

211324434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55089.

The product of its digits is 2304, while the sum is 24.

The square root of 211324434 is about 14537.0022356743. The cubic root of 211324434 is about 595.6391540470.

Adding to 211324434 its reverse (434423112), we get a palindrome (645747546).

The spelling of 211324434 in words is "two hundred eleven million, three hundred twenty-four thousand, four hundred thirty-four".