164306220 has 96 divisors (see below), whose sum is σ = 497767872. Its totient is φ = 40255488.

The previous prime is 164306179. The next prime is 164306221. The reversal of 164306220 is 22603461.

164306220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (164306221) 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, 243804 + ... + 244476.

It is an arithmetic number, because the mean of its divisors is an integer number (5185082).

Almost surely, 2^164306220 is an apocalyptic number.

164306220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164306220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248883936).

164306220 is an abundant number, since it is smaller than the sum of its proper divisors (333461652).

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

164306220 is a wasteful number, since it uses less digits than its factorization.

164306220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011 (or 1009 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 164306220 is about 12818.1987814201. The cubic root of 164306220 is about 547.7108380860.

Adding to 164306220 its reverse (22603461), we get a palindrome (186909681).

The spelling of 164306220 in words is "one hundred sixty-four million, three hundred six thousand, two hundred twenty".