216354084 has 24 divisors (see below), whose sum is σ = 521111808. Its totient is φ = 69791520.

The previous prime is 216354071. The next prime is 216354137. The reversal of 216354084 is 480453612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290427 + ... + 291170.

It is an arithmetic number, because the mean of its divisors is an integer number (21712992).

Almost surely, 2^216354084 is an apocalyptic number.

It is an amenable number.

216354084 is an abundant number, since it is smaller than the sum of its proper divisors (304757724).

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

216354084 is a wasteful number, since it uses less digits than its factorization.

216354084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581635 (or 581633 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 216354084 is about 14708.9797062883. The cubic root of 216354084 is about 600.3276765698.

The spelling of 216354084 in words is "two hundred sixteen million, three hundred fifty-four thousand, eighty-four".