172260000 has 480 divisors, whose sum is σ = 708523200. Its totient is φ = 40320000.

The previous prime is 172259993. The next prime is 172260001. The reversal of 172260000 is 62271.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (172260001) 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 79 ways as a sum of consecutive naturals, for example, 5939986 + ... + 5940014.

It is an arithmetic number, because the mean of its divisors is an integer number (1476090).

Almost surely, 2^172260000 is an apocalyptic number.

172260000 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 172260000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354261600).

172260000 is an abundant number, since it is smaller than the sum of its proper divisors (536263200).

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

172260000 is a wasteful number, since it uses less digits than its factorization.

172260000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 172260000 is about 13124.7857125364. The cubic root of 172260000 is about 556.4098560043.

The spelling of 172260000 in words is "one hundred seventy-two million, two hundred sixty thousand".