211033434 has 16 divisors (see below), whose sum is σ = 424757088. Its totient is φ = 69896112.

The previous prime is 211033429. The next prime is 211033447. The reversal of 211033434 is 434330112.

It is a super-2 number, since 2×211033434² = 89070220531664712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211033434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111072 + ... + 112955.

It is an arithmetic number, because the mean of its divisors is an integer number (26547318).

Almost surely, 2^211033434 is an apocalyptic number.

211033434 is an abundant number, since it is smaller than the sum of its proper divisors (213723654).

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

211033434 is a wasteful number, since it uses less digits than its factorization.

211033434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224189.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 211033434 is about 14526.9898464892. The cubic root of 211033434 is about 595.3656242077.

Adding to 211033434 its reverse (434330112), we get a palindrome (645363546).

The spelling of 211033434 in words is "two hundred eleven million, thirty-three thousand, four hundred thirty-four".