172438952 has 32 divisors (see below), whose sum is σ = 372187200. Its totient is φ = 73367424.

The previous prime is 172438951. The next prime is 172438969. The reversal of 172438952 is 259834271.

It is not an unprimeable number, because it can be changed into a prime (172438951) 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 7 ways as a sum of consecutive naturals, for example, 3293 + ... + 18860.

It is an arithmetic number, because the mean of its divisors is an integer number (11630850).

Almost surely, 2^172438952 is an apocalyptic number.

It is an amenable number.

172438952 is an abundant number, since it is smaller than the sum of its proper divisors (199748248).

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

172438952 is a wasteful number, since it uses less digits than its factorization.

172438952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22305 (or 22301 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 172438952 is about 13131.6012732644. The cubic root of 172438952 is about 556.6024644583.

The spelling of 172438952 in words is "one hundred seventy-two million, four hundred thirty-eight thousand, nine hundred fifty-two".