172371426 has 8 divisors (see below), whose sum is σ = 344742864. Its totient is φ = 57457140.

The previous prime is 172371383. The next prime is 172371467. The reversal of 172371426 is 624173271.

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

172371426 is an admirable number.

It is an unprimeable number.

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, 14364280 + ... + 14364291.

It is an arithmetic number, because the mean of its divisors is an integer number (43092858).

Almost surely, 2^172371426 is an apocalyptic number.

172371426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

172371426 is a wasteful number, since it uses less digits than its factorization.

172371426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28728576.

The product of its digits is 14112, while the sum is 33.

The square root of 172371426 is about 13129.0298956168. The cubic root of 172371426 is about 556.5298009742.

The spelling of 172371426 in words is "one hundred seventy-two million, three hundred seventy-one thousand, four hundred twenty-six".