216084920 has 16 divisors (see below), whose sum is σ = 486191160. Its totient is φ = 86433952.

The previous prime is 216084917. The next prime is 216084937. The reversal of 216084920 is 29480612.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2701022 + ... + 2701101.

Almost surely, 2^216084920 is an apocalyptic number.

216084920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216084920 is an abundant number, since it is smaller than the sum of its proper divisors (270106240).

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

216084920 is a wasteful number, since it uses less digits than its factorization.

216084920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5402134 (or 5402130 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 216084920 is about 14699.8272098688. The cubic root of 216084920 is about 600.0786193275.

The spelling of 216084920 in words is "two hundred sixteen million, eighty-four thousand, nine hundred twenty".