216282770 has 16 divisors (see below), whose sum is σ = 424700928. Its totient is φ = 78648240.

The previous prime is 216282761. The next prime is 216282779. The reversal of 216282770 is 77282612.

It is an interprime number because it is at equal distance from previous prime (216282761) and next prime (216282779).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 216282770.

It is not an unprimeable number, because it can be changed into a prime (216282779) by changing a digit.

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, 982994 + ... + 983213.

It is an arithmetic number, because the mean of its divisors is an integer number (26543808).

Almost surely, 2^216282770 is an apocalyptic number.

216282770 is a deficient number, since it is larger than the sum of its proper divisors (208418158).

216282770 is a wasteful number, since it uses less digits than its factorization.

216282770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966225.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 216282770 is about 14706.5553410715. Note that the first 3 decimals coincide. The cubic root of 216282770 is about 600.2617099040.

The spelling of 216282770 in words is "two hundred sixteen million, two hundred eighty-two thousand, seven hundred seventy".