244203400057 has 2 divisors, whose sum is σ = 244203400058. Its totient is φ = 244203400056.

The previous prime is 244203400009. The next prime is 244203400261. The reversal of 244203400057 is 750004302442.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215397163881 + 28806236176 = 464109^2 + 169724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244203400057 is a prime.

It is not a weakly prime, because it can be changed into another prime (244203403057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122101700028 + 122101700029.

It is an arithmetic number, because the mean of its divisors is an integer number (122101700029).

Almost surely, 2^244203400057 is an apocalyptic number.

It is an amenable number.

244203400057 is a deficient number, since it is larger than the sum of its proper divisors (1).

244203400057 is an equidigital number, since it uses as much as digits as its factorization.

244203400057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 31.

Adding to 244203400057 its reverse (750004302442), we get a palindrome (994207702499).

The spelling of 244203400057 in words is "two hundred forty-four billion, two hundred three million, four hundred thousand, fifty-seven".