216468310 has 16 divisors (see below), whose sum is σ = 412563456. Its totient is φ = 81493888.

The previous prime is 216468289. The next prime is 216468313. The reversal of 216468310 is 13864612.

It is a happy number.

It is a super-2 number, since 2×216468310² = 93717058468512200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216468313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636502 + ... + 636841.

It is an arithmetic number, because the mean of its divisors is an integer number (25785216).

Almost surely, 2^216468310 is an apocalyptic number.

216468310 is a deficient number, since it is larger than the sum of its proper divisors (196095146).

216468310 is a wasteful number, since it uses less digits than its factorization.

216468310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273367.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 216468310 is about 14712.8620601160. The cubic root of 216468310 is about 600.4333073696.

The spelling of 216468310 in words is "two hundred sixteen million, four hundred sixty-eight thousand, three hundred ten".