172403422 has 8 divisors (see below), whose sum is σ = 260894016. Its totient is φ = 85438752.

The previous prime is 172403419. The next prime is 172403437. The reversal of 172403422 is 224304271.

It is a happy number.

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

It is a congruent number.

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, 381198 + ... + 381649.

It is an arithmetic number, because the mean of its divisors is an integer number (32611752).

Almost surely, 2^172403422 is an apocalyptic number.

172403422 is a deficient number, since it is larger than the sum of its proper divisors (88490594).

172403422 is a wasteful number, since it uses less digits than its factorization.

172403422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762962.

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

The square root of 172403422 is about 13130.2483601796. The cubic root of 172403422 is about 556.5642336453.

Adding to 172403422 its reverse (224304271), we get a palindrome (396707693).

The spelling of 172403422 in words is "one hundred seventy-two million, four hundred three thousand, four hundred twenty-two".