172342144 has 96 divisors (see below), whose sum is σ = 385266240. Its totient is φ = 76677120.

The previous prime is 172342129. The next prime is 172342187. The reversal of 172342144 is 441243271.

172342144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670464 + ... + 670720.

It is an arithmetic number, because the mean of its divisors is an integer number (4013190).

Almost surely, 2^172342144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172342144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192633120).

172342144 is an abundant number, since it is smaller than the sum of its proper divisors (212924096).

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

172342144 is a wasteful number, since it uses less digits than its factorization.

172342144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 303 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 172342144 is about 13127.9146858898. The cubic root of 172342144 is about 556.4982852548.

The spelling of 172342144 in words is "one hundred seventy-two million, three hundred forty-two thousand, one hundred forty-four".