216224426 has 32 divisors (see below), whose sum is σ = 370607616. Its totient is φ = 93654000.

The previous prime is 216224401. The next prime is 216224431. The reversal of 216224426 is 624422612.

216224426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166841 + ... + 168131.

It is an arithmetic number, because the mean of its divisors is an integer number (11581488).

Almost surely, 2^216224426 is an apocalyptic number.

216224426 is a deficient number, since it is larger than the sum of its proper divisors (154383190).

216224426 is a wasteful number, since it uses less digits than its factorization.

216224426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658.

The product of its digits is 9216, while the sum is 29.

The square root of 216224426 is about 14704.5716020563. The cubic root of 216224426 is about 600.2077299240.

The spelling of 216224426 in words is "two hundred sixteen million, two hundred twenty-four thousand, four hundred twenty-six".