671244 has 48 divisors (see below), whose sum is σ = 1833216. Its totient is φ = 187200.

The previous prime is 671233. The next prime is 671249. The reversal of 671244 is 442176.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (671249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5059 + ... + 5189.

It is an arithmetic number, because the mean of its divisors is an integer number (38192).

2⁶⁷¹²⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (916608).

671244 is an abundant number, since it is smaller than the sum of its proper divisors (1161972).

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

671244 is a wasteful number, since it uses less digits than its factorization.

671244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 204 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 671244 is about 819.2948187313. The cubic root of 671244 is about 87.5575240791.

The spelling of 671244 in words is "six hundred seventy-one thousand, two hundred forty-four".