164704442 has 16 divisors (see below), whose sum is σ = 282534912. Its totient is φ = 70541520.

The previous prime is 164704439. The next prime is 164704471. The reversal of 164704442 is 244407461.

164704442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 164704399 and 164704408.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26768 + ... + 32340.

It is an arithmetic number, because the mean of its divisors is an integer number (17658432).

Almost surely, 2^164704442 is an apocalyptic number.

164704442 is a deficient number, since it is larger than the sum of its proper divisors (117830470).

164704442 is a wasteful number, since it uses less digits than its factorization.

164704442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7693.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 164704442 is about 12833.7228425738. The cubic root of 164704442 is about 548.1529689111.

The spelling of 164704442 in words is "one hundred sixty-four million, seven hundred four thousand, four hundred forty-two".