16444422 has 12 divisors (see below), whose sum is σ = 35629620. Its totient is φ = 5481468.

The previous prime is 16444409. The next prime is 16444429. The reversal of 16444422 is 22444461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16444429) 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 5 ways as a sum of consecutive naturals, for example, 456772 + ... + 456807.

It is an arithmetic number, because the mean of its divisors is an integer number (2969135).

Almost surely, 2^16444422 is an apocalyptic number.

16444422 is an abundant number, since it is smaller than the sum of its proper divisors (19185198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16444422 is a wasteful number, since it uses less digits than its factorization.

16444422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913587 (or 913584 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 16444422 is about 4055.1722528149. The cubic root of 16444422 is about 254.2960051684.

Adding to 16444422 its reverse (22444461), we get a palindrome (38888883).

The spelling of 16444422 in words is "sixteen million, four hundred forty-four thousand, four hundred twenty-two".