172431270 has 192 divisors, whose sum is σ = 525657600. Its totient is φ = 38776320.

The previous prime is 172431241. The next prime is 172431271. The reversal of 172431270 is 72134271.

It is a happy number.

172431270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172431271) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1674039 + ... + 1674141.

It is an arithmetic number, because the mean of its divisors is an integer number (2737800).

Almost surely, 2^172431270 is an apocalyptic number.

172431270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 172431270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262828800).

172431270 is an abundant number, since it is smaller than the sum of its proper divisors (353226330).

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

172431270 is a wasteful number, since it uses less digits than its factorization.

172431270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 172431270 is about 13131.3087695020. The cubic root of 172431270 is about 556.5941989561.

The spelling of 172431270 in words is "one hundred seventy-two million, four hundred thirty-one thousand, two hundred seventy".