172082380 has 12 divisors (see below), whose sum is σ = 361373040. Its totient is φ = 68832944.

The previous prime is 172082363. The next prime is 172082399. The reversal of 172082380 is 83280271.

It is a super-2 number, since 2×172082380² = 59224691012928800, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4302040 + ... + 4302079.

It is an arithmetic number, because the mean of its divisors is an integer number (30114420).

Almost surely, 2^172082380 is an apocalyptic number.

172082380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172082380 is an abundant number, since it is smaller than the sum of its proper divisors (189290660).

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

172082380 is a wasteful number, since it uses less digits than its factorization.

172082380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8604128 (or 8604126 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 172082380 is about 13118.0173806868. The cubic root of 172082380 is about 556.2185492465.

It can be divided in two parts, 1720 and 82380, that added together give a square (84100 = 290²).

The spelling of 172082380 in words is "one hundred seventy-two million, eighty-two thousand, three hundred eighty".