244421345 has 32 divisors (see below), whose sum is σ = 351682560. Its totient is φ = 159445440.

The previous prime is 244421341. The next prime is 244421381. The reversal of 244421345 is 543124442.

It is not a de Polignac number, because 244421345 - 2² = 244421341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (244421341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169136 + ... + 170574.

It is an arithmetic number, because the mean of its divisors is an integer number (10990080).

Almost surely, 2^244421345 is an apocalyptic number.

It is an amenable number.

244421345 is a deficient number, since it is larger than the sum of its proper divisors (107261215).

244421345 is a wasteful number, since it uses less digits than its factorization.

244421345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685.

The product of its digits is 15360, while the sum is 29.

The square root of 244421345 is about 15633.9804592433. The cubic root of 244421345 is about 625.2394559790.

Adding to 244421345 its reverse (543124442), we get a palindrome (787545787).

The spelling of 244421345 in words is "two hundred forty-four million, four hundred twenty-one thousand, three hundred forty-five".