172281060 has 288 divisors, whose sum is σ = 661893120. Its totient is φ = 36965376.

The previous prime is 172281029. The next prime is 172281071. The reversal of 172281060 is 60182271.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 449629 + ... + 450011.

It is an arithmetic number, because the mean of its divisors is an integer number (2298240).

Almost surely, 2^172281060 is an apocalyptic number.

172281060 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 172281060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330946560).

172281060 is an abundant number, since it is smaller than the sum of its proper divisors (489612060).

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

172281060 is a wasteful number, since it uses less digits than its factorization.

172281060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 172281060 is about 13125.5879868294. The cubic root of 172281060 is about 556.4325300901.

The spelling of 172281060 in words is "one hundred seventy-two million, two hundred eighty-one thousand, sixty".