244243431 has 28 divisors (see below), whose sum is σ = 370920480. Its totient is φ = 160729920.

The previous prime is 244243411. The next prime is 244243453. The reversal of 244243431 is 134342442.

It is a happy number.

It is not a de Polignac number, because 244243431 - 2⁵ = 244243399 is a prime.

It is a super-2 number, since 2×244243431² = 119309707173303522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 244243395 and 244243404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244243411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 55471 + ... + 59711.

It is an arithmetic number, because the mean of its divisors is an integer number (13247160).

Almost surely, 2^244243431 is an apocalyptic number.

244243431 is a deficient number, since it is larger than the sum of its proper divisors (126677049).

244243431 is an frugal number, since it uses more digits than its factorization.

244243431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4338 (or 4323 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 244243431 is about 15628.2894457455. The cubic root of 244243431 is about 625.0877154757.

Adding to 244243431 its reverse (134342442), we get a palindrome (378585873).

The spelling of 244243431 in words is "two hundred forty-four million, two hundred forty-three thousand, four hundred thirty-one".