13022444 has 12 divisors (see below), whose sum is σ = 23024904. Its totient is φ = 6443904.

The previous prime is 13022441. The next prime is 13022497. The reversal of 13022444 is 44422031.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13022441) 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 3 ways as a sum of consecutive naturals, for example, 16394 + ... + 17169.

It is an arithmetic number, because the mean of its divisors is an integer number (1918742).

Almost surely, 2^13022444 is an apocalyptic number.

It is an amenable number.

13022444 is a deficient number, since it is larger than the sum of its proper divisors (10002460).

13022444 is a wasteful number, since it uses less digits than its factorization.

13022444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33664 (or 33662 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 13022444 is about 3608.6623560538. The cubic root of 13022444 is about 235.2687072706.

Adding to 13022444 its reverse (44422031), we get a palindrome (57444475).

The spelling of 13022444 in words is "thirteen million, twenty-two thousand, four hundred forty-four".