211034420 has 12 divisors (see below), whose sum is σ = 443172324. Its totient is φ = 84413760.

The previous prime is 211034419. The next prime is 211034431. The reversal of 211034420 is 24430112.

It can be written as a sum of positive squares in 2 ways, for example, as 27269284 + 183765136 = 5222^2 + 13556^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5275841 + ... + 5275880.

It is an arithmetic number, because the mean of its divisors is an integer number (36931027).

Almost surely, 2^211034420 is an apocalyptic number.

211034420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211034420 is an abundant number, since it is smaller than the sum of its proper divisors (232137904).

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

211034420 is a wasteful number, since it uses less digits than its factorization.

211034420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10551730 (or 10551728 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 211034420 is about 14527.0237832806. The cubic root of 211034420 is about 595.3665514377.

Adding to 211034420 its reverse (24430112), we get a palindrome (235464532).

The spelling of 211034420 in words is "two hundred eleven million, thirty-four thousand, four hundred twenty".