244440143 has 4 divisors (see below), whose sum is σ = 244565640. Its totient is φ = 244314648.

The previous prime is 244440139. The next prime is 244440151. The reversal of 244440143 is 341044442.

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 244440143 - 2² = 244440139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244440193) 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, 59780 + ... + 63737.

It is an arithmetic number, because the mean of its divisors is an integer number (61141410).

Almost surely, 2^244440143 is an apocalyptic number.

244440143 is a deficient number, since it is larger than the sum of its proper divisors (125497).

244440143 is a wasteful number, since it uses less digits than its factorization.

244440143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125496.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 244440143 is about 15634.5816381507. The cubic root of 244440143 is about 625.2554842436.

Adding to 244440143 its reverse (341044442), we get a palindrome (585484585).

The spelling of 244440143 in words is "two hundred forty-four million, four hundred forty thousand, one hundred forty-three".