211434234 has 16 divisors (see below), whose sum is σ = 461311200. Its totient is φ = 64070960.

The previous prime is 211434233. The next prime is 211434241. The reversal of 211434234 is 432434112.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211434233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1601709 + ... + 1601840.

It is an arithmetic number, because the mean of its divisors is an integer number (28831950).

Almost surely, 2^211434234 is an apocalyptic number.

211434234 is an abundant number, since it is smaller than the sum of its proper divisors (249876966).

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

211434234 is a wasteful number, since it uses less digits than its factorization.

211434234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203565.

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

The square root of 211434234 is about 14540.7783147946. The cubic root of 211434234 is about 595.7422969634.

Adding to 211434234 its reverse (432434112), we get a palindrome (643868346).

The spelling of 211434234 in words is "two hundred eleven million, four hundred thirty-four thousand, two hundred thirty-four".