172064260 has 48 divisors (see below), whose sum is σ = 375201792. Its totient is φ = 66211200.

The previous prime is 172064203. The next prime is 172064261. The reversal of 172064260 is 62460271.

It is a super-2 number, since 2×172064260² = 59212219138695200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172064261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117694 + ... + 119146.

It is an arithmetic number, because the mean of its divisors is an integer number (7816704).

Almost surely, 2^172064260 is an apocalyptic number.

172064260 is a gapful number since it is divisible by the number (10) 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 172064260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187600896).

172064260 is an abundant number, since it is smaller than the sum of its proper divisors (203137532).

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

172064260 is a wasteful number, since it uses less digits than its factorization.

172064260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 172064260 is about 13117.3267093566. The cubic root of 172064260 is about 556.1990255860.

The spelling of 172064260 in words is "one hundred seventy-two million, sixty-four thousand, two hundred sixty".