172022080 has 28 divisors (see below), whose sum is σ = 409628340. Its totient is φ = 68808704.

The previous prime is 172022077. The next prime is 172022087. The reversal of 172022080 is 80220271.

It can be written as a sum of positive squares in 2 ways, for example, as 99840064 + 72182016 = 9992^2 + 8496^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172022087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268465 + ... + 269104.

Almost surely, 2^172022080 is an apocalyptic number.

172022080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172022080 is an abundant number, since it is smaller than the sum of its proper divisors (237606260).

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

172022080 is an equidigital number, since it uses as much as digits as its factorization.

172022080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537586 (or 537576 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 172022080 is about 13115.7188136983. The cubic root of 172022080 is about 556.1535728150.

The spelling of 172022080 in words is "one hundred seventy-two million, twenty-two thousand, eighty".