216406152 has 48 divisors (see below), whose sum is σ = 586950000. Its totient is φ = 72030816.

The previous prime is 216406147. The next prime is 216406163. The reversal of 216406152 is 251604612.

216406152 is a `hidden beast` number, since 2 + 1 + 6 + 40 + 615 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60099 + ... + 63597.

It is an arithmetic number, because the mean of its divisors is an integer number (12228125).

Almost surely, 2^216406152 is an apocalyptic number.

It is an amenable number.

216406152 is an abundant number, since it is smaller than the sum of its proper divisors (370543848).

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

216406152 is a wasteful number, since it uses less digits than its factorization.

216406152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370 (or 4363 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 216406152 is about 14710.7495390276. The cubic root of 216406152 is about 600.3758312024.

The spelling of 216406152 in words is "two hundred sixteen million, four hundred six thousand, one hundred fifty-two".