173490780 has 96 divisors (see below), whose sum is σ = 528365376. Its totient is φ = 42356736.

The previous prime is 173490773. The next prime is 173490781. The reversal of 173490780 is 87094371.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173490781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35442 + ... + 40038.

It is an arithmetic number, because the mean of its divisors is an integer number (5503806).

Almost surely, 2^173490780 is an apocalyptic number.

173490780 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 173490780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264182688).

173490780 is an abundant number, since it is smaller than the sum of its proper divisors (354874596).

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

173490780 is a wasteful number, since it uses less digits than its factorization.

173490780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663 (or 4661 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 173490780 is about 13171.5898812558. The cubic root of 173490780 is about 557.7318761693.

The spelling of 173490780 in words is "one hundred seventy-three million, four hundred ninety thousand, seven hundred eighty".