164240444 has 6 divisors (see below), whose sum is σ = 287420784. Its totient is φ = 82120220.

The previous prime is 164240441. The next prime is 164240473. The reversal of 164240444 is 444042461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164240441) 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 as a sum of consecutive naturals, namely, 20530052 + ... + 20530059.

It is an arithmetic number, because the mean of its divisors is an integer number (47903464).

Almost surely, 2^164240444 is an apocalyptic number.

It is an amenable number.

164240444 is a deficient number, since it is larger than the sum of its proper divisors (123180340).

164240444 is a wasteful number, since it uses less digits than its factorization.

164240444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41060115 (or 41060113 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 164240444 is about 12815.6327974860. The cubic root of 164240444 is about 547.6377407588.

The spelling of 164240444 in words is "one hundred sixty-four million, two hundred forty thousand, four hundred forty-four".