216304616 has 32 divisors (see below), whose sum is σ = 443772000. Its totient is φ = 98024640.

The previous prime is 216304603. The next prime is 216304637. The reversal of 216304616 is 616403612.

It is a happy number.

216304616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27191 + ... + 34233.

It is an arithmetic number, because the mean of its divisors is an integer number (13867875).

Almost surely, 2^216304616 is an apocalyptic number.

It is an amenable number.

216304616 is an abundant number, since it is smaller than the sum of its proper divisors (227467384).

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

216304616 is a wasteful number, since it uses less digits than its factorization.

216304616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7409 (or 7405 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 216304616 is about 14707.2980523276. The cubic root of 216304616 is about 600.2819193669.

The spelling of 216304616 in words is "two hundred sixteen million, three hundred four thousand, six hundred sixteen".