216441626 has 8 divisors (see below), whose sum is σ = 326998560. Its totient is φ = 107442108.

The previous prime is 216441623. The next prime is 216441647. The reversal of 216441626 is 626144612.

216441626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 216441592 and 216441601.

It is not an unprimeable number, because it can be changed into a prime (216441623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389006 + ... + 389561.

It is an arithmetic number, because the mean of its divisors is an integer number (40874820).

Almost surely, 2^216441626 is an apocalyptic number.

216441626 is a deficient number, since it is larger than the sum of its proper divisors (110556934).

216441626 is a wasteful number, since it uses less digits than its factorization.

216441626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778708.

The product of its digits is 13824, while the sum is 32.

The square root of 216441626 is about 14711.9552065658. The cubic root of 216441626 is about 600.4086345961.

The spelling of 216441626 in words is "two hundred sixteen million, four hundred forty-one thousand, six hundred twenty-six".