216423160 has 32 divisors (see below), whose sum is σ = 487599840. Its totient is φ = 86454144.

The previous prime is 216423157. The next prime is 216423161. The reversal of 216423160 is 61324612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216423161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30949 + ... + 37291.

It is an arithmetic number, because the mean of its divisors is an integer number (15237495).

Almost surely, 2^216423160 is an apocalyptic number.

216423160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216423160 is an abundant number, since it is smaller than the sum of its proper divisors (271176680).

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

216423160 is a wasteful number, since it uses less digits than its factorization.

216423160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7207 (or 7203 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 216423160 is about 14711.3276083432. The cubic root of 216423160 is about 600.3915592282.

Adding to 216423160 its reverse (61324612), we get a palindrome (277747772).

The spelling of 216423160 in words is "two hundred sixteen million, four hundred twenty-three thousand, one hundred sixty".