173250220 has 72 divisors (see below), whose sum is σ = 430747632. Its totient is φ = 58143360.

The previous prime is 173250211. The next prime is 173250221. The reversal of 173250220 is 22052371.

173250220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 173250191 and 173250200.

It is not an unprimeable number, because it can be changed into a prime (173250221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28707 + ... + 34213.

It is an arithmetic number, because the mean of its divisors is an integer number (5982606).

Almost surely, 2^173250220 is an apocalyptic number.

173250220 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 173250220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215373816).

173250220 is an abundant number, since it is smaller than the sum of its proper divisors (257497412).

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

173250220 is a wasteful number, since it uses less digits than its factorization.

173250220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551 (or 5538 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 173250220 is about 13162.4549381945. The cubic root of 173250220 is about 557.4739757403.

The spelling of 173250220 in words is "one hundred seventy-three million, two hundred fifty thousand, two hundred twenty".