216363426 has 8 divisors (see below), whose sum is σ = 432726864. Its totient is φ = 72121140.

The previous prime is 216363421. The next prime is 216363479. The reversal of 216363426 is 624363612.

216363426 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.

216363426 is an admirable number.

It is a super-2 number, since 2×216363426² = 93626264220914952, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (216363421) 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, 18030280 + ... + 18030291.

It is an arithmetic number, because the mean of its divisors is an integer number (54090858).

Almost surely, 2^216363426 is an apocalyptic number.

216363426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

216363426 is a wasteful number, since it uses less digits than its factorization.

216363426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36060576.

The product of its digits is 31104, while the sum is 33.

The square root of 216363426 is about 14709.2972639756. The cubic root of 216363426 is about 600.3363170051.

The spelling of 216363426 in words is "two hundred sixteen million, three hundred sixty-three thousand, four hundred twenty-six".