216302364 has 18 divisors (see below), whose sum is σ = 546764400. Its totient is φ = 72100776.

The previous prime is 216302363. The next prime is 216302371. The reversal of 216302364 is 463203612.

216302364 is a `hidden beast` number, since 2 + 1 + 630 + 23 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216302363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3004164 + ... + 3004235.

It is an arithmetic number, because the mean of its divisors is an integer number (30375800).

Almost surely, 2^216302364 is an apocalyptic number.

It is an amenable number.

216302364 is an abundant number, since it is smaller than the sum of its proper divisors (330462036).

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

216302364 is a wasteful number, since it uses less digits than its factorization.

216302364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6008409 (or 6008404 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 216302364 is about 14707.2214914987. The cubic root of 216302364 is about 600.2798361326.

Adding to 216302364 its reverse (463203612), we get a palindrome (679505976).

The spelling of 216302364 in words is "two hundred sixteen million, three hundred two thousand, three hundred sixty-four".