172352226 has 16 divisors (see below), whose sum is σ = 345457728. Its totient is φ = 57325200.

The previous prime is 172352189. The next prime is 172352227. The reversal of 172352226 is 622253271.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 172352193 and 172352202.

It is not an unprimeable number, because it can be changed into a prime (172352227) 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, 28390 + ... + 33921.

It is an arithmetic number, because the mean of its divisors is an integer number (21591108).

Almost surely, 2^172352226 is an apocalyptic number.

172352226 is an abundant number, since it is smaller than the sum of its proper divisors (173105502).

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

172352226 is a wasteful number, since it uses less digits than its factorization.

172352226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62777.

The product of its digits is 10080, while the sum is 30.

The square root of 172352226 is about 13128.2986711912. The cubic root of 172352226 is about 556.5091367431.

It can be divided in two parts, 172352 and 226, that added together give a triangular number (172578 = T₅₈₇).

The spelling of 172352226 in words is "one hundred seventy-two million, three hundred fifty-two thousand, two hundred twenty-six".