672180 has 48 divisors (see below), whose sum is σ = 1995840. Its totient is φ = 168448.

The previous prime is 672169. The next prime is 672181. The reversal of 672180 is 81276.

It is a self number, because there is not a number n which added to its sum of digits gives 672180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672181) by changing a digit.

672180 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691 + ... + 1349.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2⁶⁷²¹⁸⁰ is an apocalyptic number.

672180 is a gapful number since it is divisible by the number (60) 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 672180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997920).

672180 is an abundant number, since it is smaller than the sum of its proper divisors (1323660).

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

672180 is a wasteful number, since it uses less digits than its factorization.

672180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 672180 is about 819.8658426840. The cubic root of 672180 is about 87.5982026695.

The spelling of 672180 in words is "six hundred seventy-two thousand, one hundred eighty".