216360252 has 36 divisors (see below), whose sum is σ = 548149056. Its totient is φ = 71956800.

The previous prime is 216360251. The next prime is 216360269. The reversal of 216360252 is 252063612.

216360252 is a `hidden beast` number, since 2 + 1 + 6 + 3 + 602 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216360251) 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, 9877 + ... + 23027.

Almost surely, 2^216360252 is an apocalyptic number.

It is an amenable number.

216360252 is an abundant number, since it is smaller than the sum of its proper divisors (331788804).

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

216360252 is a wasteful number, since it uses less digits than its factorization.

216360252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13618 (or 13613 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 216360252 is about 14709.1893726337. The cubic root of 216360252 is about 600.3333813938. Note that the first 4 decimals are identical.

It can be divided in two parts, 216360 and 252, that added together give a palindrome (216612).

The spelling of 216360252 in words is "two hundred sixteen million, three hundred sixty thousand, two hundred fifty-two".