216242532 has 36 divisors (see below), whose sum is σ = 596306256. Its totient is φ = 65527920.

The previous prime is 216242503. The next prime is 216242599. The reversal of 216242532 is 235242612.

It is a happy number.

216242532 is a `hidden beast` number, since 2 + 1 + 624 + 2 + 5 + 32 = 666.

216242532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 216242496 and 216242505.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272638 + ... + 273429.

Almost surely, 2^216242532 is an apocalyptic number.

216242532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

216242532 is an abundant number, since it is smaller than the sum of its proper divisors (380063724).

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

216242532 is a wasteful number, since it uses less digits than its factorization.

216242532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546088 (or 546083 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 216242532 is about 14705.1872480428. The cubic root of 216242532 is about 600.2244826687.

The spelling of 216242532 in words is "two hundred sixteen million, two hundred forty-two thousand, five hundred thirty-two".