164214404 has 12 divisors (see below), whose sum is σ = 290338524. Its totient is φ = 81260544.

The previous prime is 164214403. The next prime is 164214419. The reversal of 164214404 is 404412461.

It can be written as a sum of positive squares in 2 ways, for example, as 123254404 + 40960000 = 11102^2 + 6400^2 .

It is not an unprimeable number, because it can be changed into a prime (164214403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211229 + ... + 212004.

It is an arithmetic number, because the mean of its divisors is an integer number (24194877).

Almost surely, 2^164214404 is an apocalyptic number.

It is an amenable number.

164214404 is a deficient number, since it is larger than the sum of its proper divisors (126124120).

164214404 is a wasteful number, since it uses less digits than its factorization.

164214404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423334 (or 423332 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 164214404 is about 12814.6168105020. The cubic root of 164214404 is about 547.6087969329.

Adding to 164214404 its reverse (404412461), we get a palindrome (568626865).

The spelling of 164214404 in words is "one hundred sixty-four million, two hundred fourteen thousand, four hundred four".