244320641 has 8 divisors (see below), whose sum is σ = 252384000. Its totient is φ = 236268720.

The previous prime is 244320623. The next prime is 244320647. The reversal of 244320641 is 146023442.

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

It is a cyclic number.

It is not a de Polignac number, because 244320641 - 2¹⁴ = 244304257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 244320641.

It is not an unprimeable number, because it can be changed into a prime (244320647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72410 + ... + 75708.

It is an arithmetic number, because the mean of its divisors is an integer number (31548000).

Almost surely, 2^244320641 is an apocalyptic number.

It is an amenable number.

244320641 is a deficient number, since it is larger than the sum of its proper divisors (8063359).

244320641 is a wasteful number, since it uses less digits than its factorization.

244320641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5719.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 244320641 is about 15630.7594505194. The cubic root of 244320641 is about 625.1535759133.

The spelling of 244320641 in words is "two hundred forty-four million, three hundred twenty thousand, six hundred forty-one".