164238980 has 12 divisors (see below), whose sum is σ = 344901900. Its totient is φ = 65695584.

The previous prime is 164238979. The next prime is 164239001. The reversal of 164238980 is 89832461.

It can be written as a sum of positive squares in 2 ways, for example, as 110334016 + 53904964 = 10504^2 + 7342^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4105955 + ... + 4105994.

It is an arithmetic number, because the mean of its divisors is an integer number (28741825).

Almost surely, 2^164238980 is an apocalyptic number.

164238980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164238980 is an abundant number, since it is smaller than the sum of its proper divisors (180662920).

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

164238980 is a wasteful number, since it uses less digits than its factorization.

164238980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8211958 (or 8211956 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 164238980 is about 12815.5756796174. The cubic root of 164238980 is about 547.6361135834.

The spelling of 164238980 in words is "one hundred sixty-four million, two hundred thirty-eight thousand, nine hundred eighty".