216888070 has 32 divisors (see below), whose sum is σ = 446868288. Its totient is φ = 74245248.

The previous prime is 216888041. The next prime is 216888079. The reversal of 216888070 is 70888612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216888079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50944 + ... + 55036.

It is an arithmetic number, because the mean of its divisors is an integer number (13964634).

Almost surely, 2^216888070 is an apocalyptic number.

216888070 is an abundant number, since it is smaller than the sum of its proper divisors (229980218).

216888070 is a wasteful number, since it uses less digits than its factorization.

216888070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4864.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 216888070 is about 14727.1202208714. The cubic root of 216888070 is about 600.8211626774.

The spelling of 216888070 in words is "two hundred sixteen million, eight hundred eighty-eight thousand, seventy".