244648889 has 4 divisors (see below), whose sum is σ = 248094720. Its totient is φ = 241203060.

The previous prime is 244648879. The next prime is 244648903. The reversal of 244648889 is 988846442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 244648889 - 2¹² = 244644793 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 244648889.

It is not an unprimeable number, because it can be changed into a prime (244648879) 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, 1722809 + ... + 1722950.

It is an arithmetic number, because the mean of its divisors is an integer number (62023680).

Almost surely, 2^244648889 is an apocalyptic number.

It is an amenable number.

244648889 is a deficient number, since it is larger than the sum of its proper divisors (3445831).

244648889 is an equidigital number, since it uses as much as digits as its factorization.

244648889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445830.

The product of its digits is 3538944, while the sum is 53.

The square root of 244648889 is about 15641.2559917674. The cubic root of 244648889 is about 625.4334179820.

The spelling of 244648889 in words is "two hundred forty-four million, six hundred forty-eight thousand, eight hundred eighty-nine".