163420 has 12 divisors (see below), whose sum is σ = 343224. Its totient is φ = 65360.

The previous prime is 163417. The next prime is 163433. The reversal of 163420 is 24361.

163420 = T₁₅₉ + T₁₆₀ + ... + T₁₇₀.

It is a junction number, because it is equal to n+sod(n) for n = 163394 and 163403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4066 + ... + 4105.

It is an arithmetic number, because the mean of its divisors is an integer number (28602).

2¹⁶³⁴²⁰ is an apocalyptic number.

163420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163420 is an abundant number, since it is smaller than the sum of its proper divisors (179804).

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

163420 is a wasteful number, since it uses less digits than its factorization.

163420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8180 (or 8178 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 163420 is about 404.2523964060. The cubic root of 163420 is about 54.6724331282.

Adding to 163420 its reverse (24361), we get a palindrome (187781).

The spelling of 163420 in words is "one hundred sixty-three thousand, four hundred twenty".