173420880 has 80 divisors (see below), whose sum is σ = 538995264. Its totient is φ = 46126080.

The previous prime is 173420867. The next prime is 173420903. The reversal of 173420880 is 88024371.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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 15 ways as a sum of consecutive naturals, for example, 130620 + ... + 131940.

Almost surely, 2^173420880 is an apocalyptic number.

173420880 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 173420880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269497632).

173420880 is an abundant number, since it is smaller than the sum of its proper divisors (365574384).

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

173420880 is a wasteful number, since it uses less digits than its factorization.

173420880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 173420880 is about 13168.9361757129. The cubic root of 173420880 is about 557.6569621113.

The spelling of 173420880 in words is "one hundred seventy-three million, four hundred twenty thousand, eight hundred eighty".