20130234 has 32 divisors (see below), whose sum is σ = 43848000. Its totient is φ = 6136704.

The previous prime is 20130233. The next prime is 20130251. The reversal of 20130234 is 43203102.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20130233) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 262 + ... + 6350.

It is an arithmetic number, because the mean of its divisors is an integer number (1370250).

Almost surely, 2^20130234 is an apocalyptic number.

20130234 is an abundant number, since it is smaller than the sum of its proper divisors (23717766).

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

20130234 is a wasteful number, since it uses less digits than its factorization.

20130234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6142.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20130234 is about 4486.6729321403. The cubic root of 20130234 is about 272.0296698460.

Adding to 20130234 its reverse (43203102), we get a palindrome (63333336).

The spelling of 20130234 in words is "twenty million, one hundred thirty thousand, two hundred thirty-four".