21234114 has 24 divisors (see below), whose sum is σ = 50190192. Its totient is φ = 6434520.

The previous prime is 21234113. The next prime is 21234127. The reversal of 21234114 is 41143212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21234113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53424 + ... + 53819.

It is an arithmetic number, because the mean of its divisors is an integer number (2091258).

Almost surely, 2^21234114 is an apocalyptic number.

21234114 is an abundant number, since it is smaller than the sum of its proper divisors (28956078).

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

21234114 is a wasteful number, since it uses less digits than its factorization.

21234114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107262 (or 107259 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 21234114 is about 4608.0488278663. The cubic root of 21234114 is about 276.9138736614.

Adding to 21234114 its reverse (41143212), we get a palindrome (62377326).

The spelling of 21234114 in words is "twenty-one million, two hundred thirty-four thousand, one hundred fourteen".