216230364 has 48 divisors (see below), whose sum is σ = 640684800. Its totient is φ = 61779888.

The previous prime is 216230353. The next prime is 216230369. The reversal of 216230364 is 463032612.

216230364 is a `hidden beast` number, since 2 + 1 + 623 + 0 + 36 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216230369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142254 + ... + 143765.

It is an arithmetic number, because the mean of its divisors is an integer number (13347600).

Almost surely, 2^216230364 is an apocalyptic number.

It is an amenable number.

216230364 is an abundant number, since it is smaller than the sum of its proper divisors (424454436).

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

216230364 is a wasteful number, since it uses less digits than its factorization.

216230364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286039 (or 286031 counting only the distinct ones).

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

The square root of 216230364 is about 14704.7735106665. The cubic root of 216230364 is about 600.2132242167.

Adding to 216230364 its reverse (463032612), we get a palindrome (679262976).

The spelling of 216230364 in words is "two hundred sixteen million, two hundred thirty thousand, three hundred sixty-four".