172209282 has 16 divisors (see below), whose sum is σ = 393621312. Its totient is φ = 49202640.

The previous prime is 172209223. The next prime is 172209287. The reversal of 172209282 is 282902271.

It is not an unprimeable number, because it can be changed into a prime (172209287) 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 7 ways as a sum of consecutive naturals, for example, 2050069 + ... + 2050152.

It is an arithmetic number, because the mean of its divisors is an integer number (24601332).

Almost surely, 2^172209282 is an apocalyptic number.

172209282 is an abundant number, since it is smaller than the sum of its proper divisors (221412030).

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

172209282 is a wasteful number, since it uses less digits than its factorization.

172209282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100233.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 172209282 is about 13122.8534244653. The cubic root of 172209282 is about 556.3552432772.

The spelling of 172209282 in words is "one hundred seventy-two million, two hundred nine thousand, two hundred eighty-two".