20130244 has 48 divisors (see below), whose sum is σ = 39747456. Its totient is φ = 8870400.

The previous prime is 20130233. The next prime is 20130251. The reversal of 20130244 is 44203102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95299 + ... + 95509.

It is an arithmetic number, because the mean of its divisors is an integer number (828072).

Almost surely, 2^20130244 is an apocalyptic number.

It is an amenable number.

20130244 is a deficient number, since it is larger than the sum of its proper divisors (19617212).

20130244 is a wasteful number, since it uses less digits than its factorization.

20130244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20130244 is about 4486.6740465516. The cubic root of 20130244 is about 272.0297148909.

Adding to 20130244 its reverse (44203102), we get a palindrome (64333346).

The spelling of 20130244 in words is "twenty million, one hundred thirty thousand, two hundred forty-four".