173412720 has 240 divisors, whose sum is σ = 636959232. Its totient is φ = 42024960.

The previous prime is 173412713. The next prime is 173412727. The reversal of 173412720 is 27214371.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (173412713) and next prime (173412727).

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173412727) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 907825 + ... + 908015.

Almost surely, 2^173412720 is an apocalyptic number.

173412720 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 173412720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318479616).

173412720 is an abundant number, since it is smaller than the sum of its proper divisors (463546512).

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

173412720 is a wasteful number, since it uses less digits than its factorization.

173412720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 173412720 is about 13168.6263520536. The cubic root of 173412720 is about 557.6482154671.

The spelling of 173412720 in words is "one hundred seventy-three million, four hundred twelve thousand, seven hundred twenty".