211434452 has 24 divisors (see below), whose sum is σ = 375921000. Its totient is φ = 104039936.

The previous prime is 211434439. The next prime is 211434463. The reversal of 211434452 is 254434112.

It can be written as a sum of positive squares in 4 ways, for example, as 21104836 + 190329616 = 4594^2 + 13796^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81674 + ... + 84222.

It is an arithmetic number, because the mean of its divisors is an integer number (15663375).

Almost surely, 2^211434452 is an apocalyptic number.

It is an amenable number.

211434452 is a deficient number, since it is larger than the sum of its proper divisors (164486548).

211434452 is a wasteful number, since it uses less digits than its factorization.

211434452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875 (or 2873 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 211434452 is about 14540.7858109526. The cubic root of 211434452 is about 595.7425017108.

Adding to 211434452 its reverse (254434112), we get a palindrome (465868564).

The spelling of 211434452 in words is "two hundred eleven million, four hundred thirty-four thousand, four hundred fifty-two".