173345472 has 84 divisors (see below), whose sum is σ = 499222776. Its totient is φ = 57507840.

The previous prime is 173345453. The next prime is 173345489. The reversal of 173345472 is 274543371.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147447 + ... + 148617.

Almost surely, 2^173345472 is an apocalyptic number.

173345472 is a gapful number since it is divisible by the number (12) 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 173345472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249611388).

173345472 is an abundant number, since it is smaller than the sum of its proper divisors (325877304).

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

173345472 is a wasteful number, since it uses less digits than its factorization.

173345472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446 (or 1433 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 173345472 is about 13166.0727629768. The cubic root of 173345472 is about 557.5761223786.

The spelling of 173345472 in words is "one hundred seventy-three million, three hundred forty-five thousand, four hundred seventy-two".