172446394 has 8 divisors (see below), whose sum is σ = 272283840. Its totient is φ = 81685116.

The previous prime is 172446359. The next prime is 172446401. The reversal of 172446394 is 493644271.

172446394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2268994 + ... + 2269069.

It is an arithmetic number, because the mean of its divisors is an integer number (34035480).

Almost surely, 2^172446394 is an apocalyptic number.

172446394 is a deficient number, since it is larger than the sum of its proper divisors (99837446).

172446394 is a wasteful number, since it uses less digits than its factorization.

172446394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4538084.

The product of its digits is 145152, while the sum is 40.

The square root of 172446394 is about 13131.8846324509. The cubic root of 172446394 is about 556.6104714967.

The spelling of 172446394 in words is "one hundred seventy-two million, four hundred forty-six thousand, three hundred ninety-four".