172040626 has 8 divisors (see below), whose sum is σ = 258249600. Its totient is φ = 85957428.

The previous prime is 172040623. The next prime is 172040641. The reversal of 172040626 is 626040271.

172040626 is digitally balanced in base 3, 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 a junction number, because it is equal to n+sod(n) for n = 172040594 and 172040603.

It is not an unprimeable number, because it can be changed into a prime (172040623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27946 + ... + 33541.

It is an arithmetic number, because the mean of its divisors is an integer number (32281200).

Almost surely, 2^172040626 is an apocalyptic number.

172040626 is a deficient number, since it is larger than the sum of its proper divisors (86208974).

172040626 is a wasteful number, since it uses less digits than its factorization.

172040626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62888.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 172040626 is about 13116.4258088856. The cubic root of 172040626 is about 556.1735587252.

Adding to 172040626 its reverse (626040271), we get a palindrome (798080897).

The spelling of 172040626 in words is "one hundred seventy-two million, forty thousand, six hundred twenty-six".