424402444 has 12 divisors (see below), whose sum is σ = 747152784. Its totient is φ = 210930224.

The previous prime is 424402441. The next prime is 424402477. The reversal of 424402444 is 444204424.

It is not an unprimeable number, because it can be changed into a prime (424402441) 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, 316999 + ... + 318334.

It is an arithmetic number, because the mean of its divisors is an integer number (62262732).

Almost surely, 2^424402444 is an apocalyptic number.

It is an amenable number.

424402444 is a deficient number, since it is larger than the sum of its proper divisors (322750340).

424402444 is a wasteful number, since it uses less digits than its factorization.

424402444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635504 (or 635502 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

The square root of 424402444 is about 20601.0301684163. The cubic root of 424402444 is about 751.4947635228.

Adding to 424402444 its reverse (444204424), we get a palindrome (868606868).

The spelling of 424402444 in words is "four hundred twenty-four million, four hundred two thousand, four hundred forty-four".