216062730 has 48 divisors (see below), whose sum is σ = 604978920. Its totient is φ = 53184384.

The previous prime is 216062723. The next prime is 216062753. The reversal of 216062730 is 37260612.

It is a happy number.

216062730 is a `hidden beast` number, since 2 + 1 + 6 + 0 + 627 + 30 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 98188281 + 117874449 = 9909^2 + 10857^2 .

It is a junction number, because it is equal to n+sod(n) for n = 216062694 and 216062703.

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 23 ways as a sum of consecutive naturals, for example, 91165 + ... + 93504.

Almost surely, 2^216062730 is an apocalyptic number.

216062730 is an abundant number, since it is smaller than the sum of its proper divisors (388916190).

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

216062730 is a wasteful number, since it uses less digits than its factorization.

216062730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184695 (or 184692 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 216062730 is about 14699.0724197141. The cubic root of 216062730 is about 600.0580777115.

It can be divided in two parts, 21606 and 2730, that added together give a square (24336 = 156²).

The spelling of 216062730 in words is "two hundred sixteen million, sixty-two thousand, seven hundred thirty".