244311393 has 4 divisors (see below), whose sum is σ = 325748528. Its totient is φ = 162874260.

The previous prime is 244311391. The next prime is 244311421. The reversal of 244311393 is 393113442.

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 not a de Polignac number, because 244311393 - 2¹ = 244311391 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 244311393.

It is not an unprimeable number, because it can be changed into a prime (244311391) 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, 40718563 + ... + 40718568.

It is an arithmetic number, because the mean of its divisors is an integer number (81437132).

Almost surely, 2^244311393 is an apocalyptic number.

It is an amenable number.

244311393 is a deficient number, since it is larger than the sum of its proper divisors (81437135).

244311393 is an equidigital number, since it uses as much as digits as its factorization.

244311393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81437134.

The product of its digits is 7776, while the sum is 30.

The square root of 244311393 is about 15630.4636207631. The cubic root of 244311393 is about 625.1456880640.

The spelling of 244311393 in words is "two hundred forty-four million, three hundred eleven thousand, three hundred ninety-three".