216306070 has 64 divisors (see below), whose sum is σ = 435844800. Its totient is φ = 76930560.

The previous prime is 216306067. The next prime is 216306073. The reversal of 216306070 is 70603612.

It is an interprime number because it is at equal distance from previous prime (216306067) and next prime (216306073).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216306073) 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 31 ways as a sum of consecutive naturals, for example, 203340 + ... + 204400.

It is an arithmetic number, because the mean of its divisors is an integer number (6810075).

Almost surely, 2^216306070 is an apocalyptic number.

216306070 is an abundant number, since it is smaller than the sum of its proper divisors (219538730).

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

216306070 is a wasteful number, since it uses less digits than its factorization.

216306070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 216306070 is about 14707.3474834859. The cubic root of 216306070 is about 600.2832643959.

Adding to 216306070 its reverse (70603612), we get a palindrome (286909682).

The spelling of 216306070 in words is "two hundred sixteen million, three hundred six thousand, seventy".