164478 has 16 divisors (see below), whose sum is σ = 334080. Its totient is φ = 53976.

The previous prime is 164477. The next prime is 164503. The reversal of 164478 is 874461.

164478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301 + ... + 647.

It is an arithmetic number, because the mean of its divisors is an integer number (20880).

2¹⁶⁴⁴⁷⁸ is an apocalyptic number.

164478 is an abundant number, since it is smaller than the sum of its proper divisors (169602).

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

164478 is a wasteful number, since it uses less digits than its factorization.

164478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431.

The product of its digits is 5376, while the sum is 30.

The square root of 164478 is about 405.5588736546. The cubic root of 164478 is about 54.7901646440.

The spelling of 164478 in words is "one hundred sixty-four thousand, four hundred seventy-eight".