216342422 has 16 divisors (see below), whose sum is σ = 327744144. Its totient is φ = 107100000.

The previous prime is 216342419. The next prime is 216342431. The reversal of 216342422 is 224243612.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 216342391 and 216342400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89672 + ... + 92052.

It is an arithmetic number, because the mean of its divisors is an integer number (20484009).

Almost surely, 2^216342422 is an apocalyptic number.

216342422 is a deficient number, since it is larger than the sum of its proper divisors (111401722).

216342422 is a wasteful number, since it uses less digits than its factorization.

216342422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815.

The product of its digits is 4608, while the sum is 26.

The square root of 216342422 is about 14708.5832764410. The cubic root of 216342422 is about 600.3168900125.

The spelling of 216342422 in words is "two hundred sixteen million, three hundred forty-two thousand, four hundred twenty-two".