1672180 has 12 divisors (see below), whose sum is σ = 3511620. Its totient is φ = 668864.

The previous prime is 1672129. The next prime is 1672199. The reversal of 1672180 is 812761.

It can be written as a sum of positive squares in 2 ways, for example, as 535824 + 1136356 = 732^2 + 1066^2 .

It is a congruent number.

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, 41785 + ... + 41824.

It is an arithmetic number, because the mean of its divisors is an integer number (292635).

2^1672180 is an apocalyptic number.

1672180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1672180 is an abundant number, since it is smaller than the sum of its proper divisors (1839440).

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

1672180 is a wasteful number, since it uses less digits than its factorization.

1672180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83618 (or 83616 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1672180 is about 1293.1279905717. The cubic root of 1672180 is about 118.6937018457.

The spelling of 1672180 in words is "one million, six hundred seventy-two thousand, one hundred eighty".