216862422 has 32 divisors (see below), whose sum is σ = 511678464. Its totient is φ = 59961600.

The previous prime is 216862417. The next prime is 216862433. The reversal of 216862422 is 224268612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81979 + ... + 84582.

It is an arithmetic number, because the mean of its divisors is an integer number (15989952).

Almost surely, 2^216862422 is an apocalyptic number.

216862422 is an abundant number, since it is smaller than the sum of its proper divisors (294816042).

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

216862422 is a wasteful number, since it uses less digits than its factorization.

216862422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166604.

The product of its digits is 18432, while the sum is 33.

The square root of 216862422 is about 14726.2494206774. The cubic root of 216862422 is about 600.7974784661.

The spelling of 216862422 in words is "two hundred sixteen million, eight hundred sixty-two thousand, four hundred twenty-two".