173420 has 48 divisors (see below), whose sum is σ = 423360. Its totient is φ = 59136.

The previous prime is 173359. The next prime is 173429. The reversal of 173420 is 24371.

It is a happy number.

173420 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 (173429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5966 + ... + 5994.

It is an arithmetic number, because the mean of its divisors is an integer number (8820).

2¹⁷³⁴²⁰ is an apocalyptic number.

173420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 173420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211680).

173420 is an abundant number, since it is smaller than the sum of its proper divisors (249940).

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

173420 is a wasteful number, since it uses less digits than its factorization.

173420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 173420 is about 416.4372701860. The cubic root of 173420 is about 55.7656018859.

Adding to 173420 its reverse (24371), we get a palindrome (197791).

The spelling of 173420 in words is "one hundred seventy-three thousand, four hundred twenty", and thus it is an iban number.