16222944 has 48 divisors (see below), whose sum is σ = 42795648. Its totient is φ = 5380992.

The previous prime is 16222939. The next prime is 16222961. The reversal of 16222944 is 44922261.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 33069 + ... + 33555.

It is an arithmetic number, because the mean of its divisors is an integer number (891576).

Almost surely, 2^16222944 is an apocalyptic number.

It is an amenable number.

16222944 is an abundant number, since it is smaller than the sum of its proper divisors (26572704).

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

16222944 is a wasteful number, since it uses less digits than its factorization.

16222944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 839 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 16222944 is about 4027.7715923324. The cubic root of 16222944 is about 253.1491982963.

The spelling of 16222944 in words is "sixteen million, two hundred twenty-two thousand, nine hundred forty-four".