216274330 has 16 divisors (see below), whose sum is σ = 393150024. Its totient is φ = 85652800.

The previous prime is 216274297. The next prime is 216274363. The reversal of 216274330 is 33472612.

It is an interprime number because it is at equal distance from previous prime (216274297) and next prime (216274363).

It can be written as a sum of positive squares in 4 ways, for example, as 214944921 + 1329409 = 14661^2 + 1153^2 .

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, 106057 + ... + 108076.

Almost surely, 2^216274330 is an apocalyptic number.

216274330 is a deficient number, since it is larger than the sum of its proper divisors (176875694).

216274330 is a wasteful number, since it uses less digits than its factorization.

216274330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214241.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 216274330 is about 14706.2683914037. The cubic root of 216274330 is about 600.2539018006.

The spelling of 216274330 in words is "two hundred sixteen million, two hundred seventy-four thousand, three hundred thirty".