172944536 has 96 divisors (see below), whose sum is σ = 377241600. Its totient is φ = 74027520.

The previous prime is 172944529. The next prime is 172944539. The reversal of 172944536 is 635449271.

172944536 is nontrivially palindromic in base 6.

172944536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 172944493 and 172944502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172944539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1361705 + ... + 1361831.

It is an arithmetic number, because the mean of its divisors is an integer number (3929600).

Almost surely, 2^172944536 is an apocalyptic number.

It is an amenable number.

172944536 is an abundant number, since it is smaller than the sum of its proper divisors (204297064).

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

172944536 is a wasteful number, since it uses less digits than its factorization.

172944536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 196 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 172944536 is about 13150.8378440311. The cubic root of 172944536 is about 557.1459122841.

The spelling of 172944536 in words is "one hundred seventy-two million, nine hundred forty-four thousand, five hundred thirty-six".