216303369 has 12 divisors (see below), whose sum is σ = 296415504. Its totient is φ = 140302224.

The previous prime is 216303361. The next prime is 216303371. The reversal of 216303369 is 963303612.

It is not a de Polignac number, because 216303369 - 2³ = 216303361 is a prime.

It is a super-2 number, since 2×216303369² = 93574294881500322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216303361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22227 + ... + 30440.

It is an arithmetic number, because the mean of its divisors is an integer number (24701292).

Almost surely, 2^216303369 is an apocalyptic number.

It is an amenable number.

216303369 is a deficient number, since it is larger than the sum of its proper divisors (80112135).

216303369 is an equidigital number, since it uses as much as digits as its factorization.

216303369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52744 (or 52707 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 33.

The square root of 216303369 is about 14707.2556583477. The cubic root of 216303369 is about 600.2807658193.

The spelling of 216303369 in words is "two hundred sixteen million, three hundred three thousand, three hundred sixty-nine".