172442230 has 8 divisors (see below), whose sum is σ = 310396032. Its totient is φ = 68976888.

The previous prime is 172442213. The next prime is 172442239. The reversal of 172442230 is 32244271.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 172442195 and 172442204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172442239) 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 3 ways as a sum of consecutive naturals, for example, 8622102 + ... + 8622121.

It is an arithmetic number, because the mean of its divisors is an integer number (38799504).

Almost surely, 2^172442230 is an apocalyptic number.

172442230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172442230 is a deficient number, since it is larger than the sum of its proper divisors (137953802).

172442230 is a wasteful number, since it uses less digits than its factorization.

172442230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17244230.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 172442230 is about 13131.7260860863. The cubic root of 172442230 is about 556.6059913709.

The spelling of 172442230 in words is "one hundred seventy-two million, four hundred forty-two thousand, two hundred thirty".