16347444 has 12 divisors (see below), whose sum is σ = 38144064. Its totient is φ = 5449144.

The previous prime is 16347437. The next prime is 16347449. The reversal of 16347444 is 44474361.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16347449) 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, 681132 + ... + 681155.

It is an arithmetic number, because the mean of its divisors is an integer number (3178672).

Almost surely, 2^16347444 is an apocalyptic number.

It is an amenable number.

16347444 is an abundant number, since it is smaller than the sum of its proper divisors (21796620).

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

16347444 is a wasteful number, since it uses less digits than its factorization.

16347444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362294 (or 1362292 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 16347444 is about 4043.1972497023. The cubic root of 16347444 is about 253.7951310604.

The spelling of 16347444 in words is "sixteen million, three hundred forty-seven thousand, four hundred forty-four".