172260252 has 72 divisors (see below), whose sum is σ = 463999536. Its totient is φ = 53697024.

The previous prime is 172260239. The next prime is 172260259. The reversal of 172260252 is 252062271.

172260252 is a `hidden beast` number, since 1 + 7 + 2 + 2 + 602 + 52 = 666.

172260252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172260259) 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, 105063 + ... + 106689.

It is an arithmetic number, because the mean of its divisors is an integer number (6444438).

Almost surely, 2^172260252 is an apocalyptic number.

172260252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172260252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231999768).

172260252 is an abundant number, since it is smaller than the sum of its proper divisors (291739284).

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

172260252 is a wasteful number, since it uses less digits than its factorization.

172260252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827 (or 1822 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 172260252 is about 13124.7953126896. The cubic root of 172260252 is about 556.4101273291.

The spelling of 172260252 in words is "one hundred seventy-two million, two hundred sixty thousand, two hundred fifty-two".