172059072 has 56 divisors (see below), whose sum is σ = 460400400. Its totient is φ = 56702976.

The previous prime is 172059061. The next prime is 172059073. The reversal of 172059072 is 270950271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172059073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12054 + ... + 22122.

Almost surely, 2^172059072 is an apocalyptic number.

172059072 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 172059072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230200200).

172059072 is an abundant number, since it is smaller than the sum of its proper divisors (288341328).

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

172059072 is a wasteful number, since it uses less digits than its factorization.

172059072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10173 (or 10163 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 172059072 is about 13117.1289541576. The cubic root of 172059072 is about 556.1934354467.

The spelling of 172059072 in words is "one hundred seventy-two million, fifty-nine thousand, seventy-two".