244042231 has 4 divisors (see below), whose sum is σ = 248178600. Its totient is φ = 239905864.

The previous prime is 244042229. The next prime is 244042237. The reversal of 244042231 is 132240442.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 244042231 - 2¹ = 244042229 is a prime.

It is a super-2 number, since 2×244042231² = 119113221022914722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244042237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2068096 + ... + 2068213.

It is an arithmetic number, because the mean of its divisors is an integer number (62044650).

Almost surely, 2^244042231 is an apocalyptic number.

244042231 is a deficient number, since it is larger than the sum of its proper divisors (4136369).

244042231 is an equidigital number, since it uses as much as digits as its factorization.

244042231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4136368.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 244042231 is about 15621.8510746966. The cubic root of 244042231 is about 624.9160258378.

Adding to 244042231 its reverse (132240442), we get a palindrome (376282673).

The spelling of 244042231 in words is "two hundred forty-four million, forty-two thousand, two hundred thirty-one".