216623262 has 16 divisors (see below), whose sum is σ = 436007952. Its totient is φ = 71747520.

The previous prime is 216623249. The next prime is 216623273. The reversal of 216623262 is 262326612.

216623262 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

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, 114039 + ... + 115922.

It is an arithmetic number, because the mean of its divisors is an integer number (27250497).

Almost surely, 2^216623262 is an apocalyptic number.

216623262 is an abundant number, since it is smaller than the sum of its proper divisors (219384690).

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

216623262 is a wasteful number, since it uses less digits than its factorization.

216623262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230123.

The product of its digits is 10368, while the sum is 30.

The square root of 216623262 is about 14718.1269868146. The cubic root of 216623262 is about 600.5765402692.

Adding to 216623262 its reverse (262326612), we get a palindrome (478949874).

The spelling of 216623262 in words is "two hundred sixteen million, six hundred twenty-three thousand, two hundred sixty-two".