244131426 has 72 divisors (see below), whose sum is σ = 671274864. Its totient is φ = 63408240.

The previous prime is 244131421. The next prime is 244131427. The reversal of 244131426 is 624131442.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 244131426.

It is not an unprimeable number, because it can be changed into a prime (244131421) 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 35 ways as a sum of consecutive naturals, for example, 2880 + ... + 22283.

It is an arithmetic number, because the mean of its divisors is an integer number (9323262).

Almost surely, 2^244131426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 244131426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335637432).

244131426 is an abundant number, since it is smaller than the sum of its proper divisors (427143438).

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

244131426 is a wasteful number, since it uses less digits than its factorization.

244131426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25196 (or 25186 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 244131426 is about 15624.7056292271. The cubic root of 244131426 is about 624.9921500881.

Adding to 244131426 its reverse (624131442), we get a palindrome (868262868).

The spelling of 244131426 in words is "two hundred forty-four million, one hundred thirty-one thousand, four hundred twenty-six".