216441944 has 16 divisors (see below), whose sum is σ = 407003400. Its totient is φ = 107907712.

The previous prime is 216441941. The next prime is 216441949. The reversal of 216441944 is 449144612.

216441944 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216441941) 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, 36209 + ... + 41760.

Almost surely, 2^216441944 is an apocalyptic number.

It is an amenable number.

216441944 is a deficient number, since it is larger than the sum of its proper divisors (190561456).

216441944 is a wasteful number, since it uses less digits than its factorization.

216441944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78322 (or 78318 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 216441944 is about 14711.9660140989. The cubic root of 216441944 is about 600.4089286397.

The spelling of 216441944 in words is "two hundred sixteen million, four hundred forty-one thousand, nine hundred forty-four".