164444408 has 8 divisors (see below), whose sum is σ = 308333280. Its totient is φ = 82222200.

The previous prime is 164444393. The next prime is 164444419. The reversal of 164444408 is 804444461.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10277768 + ... + 10277783.

It is an arithmetic number, because the mean of its divisors is an integer number (38541660).

Almost surely, 2^164444408 is an apocalyptic number.

It is an amenable number.

164444408 is a deficient number, since it is larger than the sum of its proper divisors (143888872).

164444408 is a wasteful number, since it uses less digits than its factorization.

164444408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20555557 (or 20555553 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 35.

The square root of 164444408 is about 12823.5879534551. The cubic root of 164444408 is about 547.8643438523.

Adding to 164444408 its reverse (804444461), we get a palindrome (968888869).

The spelling of 164444408 in words is "one hundred sixty-four million, four hundred forty-four thousand, four hundred eight".