244664247 has 8 divisors (see below), whose sum is σ = 328297456. Its totient is φ = 162070272.

The previous prime is 244664237. The next prime is 244664249. The reversal of 244664247 is 742466442.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 244664247 - 2²⁷ = 110446519 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 (244664249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259258 + ... + 260199.

It is an arithmetic number, because the mean of its divisors is an integer number (41037182).

Almost surely, 2^244664247 is an apocalyptic number.

244664247 is a deficient number, since it is larger than the sum of its proper divisors (83633209).

244664247 is a wasteful number, since it uses less digits than its factorization.

244664247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519617.

The product of its digits is 258048, while the sum is 39.

The square root of 244664247 is about 15641.7469292915. The cubic root of 244664247 is about 625.4465050439.

The spelling of 244664247 in words is "two hundred forty-four million, six hundred sixty-four thousand, two hundred forty-seven".