164430222 has 64 divisors (see below), whose sum is σ = 383885568. Its totient is φ = 46400000.

The previous prime is 164430191. The next prime is 164430223. The reversal of 164430222 is 222034461.

164430222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×164430222³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164430192 and 164430201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164430223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112597 + ... + 114047.

It is an arithmetic number, because the mean of its divisors is an integer number (5998212).

Almost surely, 2^164430222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164430222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191942784).

164430222 is an abundant number, since it is smaller than the sum of its proper divisors (219455346).

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

164430222 is a wasteful number, since it uses less digits than its factorization.

164430222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 164430222 is about 12823.0348201976. The cubic root of 164430222 is about 547.8485893344.

Adding to 164430222 its reverse (222034461), we get a palindrome (386464683).

The spelling of 164430222 in words is "one hundred sixty-four million, four hundred thirty thousand, two hundred twenty-two".