216460650 has 48 divisors (see below), whose sum is σ = 613514304. Its totient is φ = 49476480.

The previous prime is 216460649. The next prime is 216460661. The reversal of 216460650 is 56064612.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102027 + ... + 104126.

It is an arithmetic number, because the mean of its divisors is an integer number (12781548).

Almost surely, 2^216460650 is an apocalyptic number.

216460650 is an abundant number, since it is smaller than the sum of its proper divisors (397053654).

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

216460650 is a wasteful number, since it uses less digits than its factorization.

216460650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206175 (or 206170 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 216460650 is about 14712.6017413644. The cubic root of 216460650 is about 600.4262249266.

The spelling of 216460650 in words is "two hundred sixteen million, four hundred sixty thousand, six hundred fifty".