671242 has 16 divisors (see below), whose sum is σ = 1183392. Its totient is φ = 281520.

The previous prime is 671233. The next prime is 671249. The reversal of 671242 is 242176.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a plaindrome in base 14.

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 7 ways as a sum of consecutive naturals, for example, 888 + ... + 1459.

It is an arithmetic number, because the mean of its divisors is an integer number (73962).

2⁶⁷¹²⁴² is an apocalyptic number.

671242 is a deficient number, since it is larger than the sum of its proper divisors (512150).

671242 is a wasteful number, since it uses less digits than its factorization.

671242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373.

The product of its digits is 672, while the sum is 22.

The square root of 671242 is about 819.2935981686. The cubic root of 671242 is about 87.5574371186.

The spelling of 671242 in words is "six hundred seventy-one thousand, two hundred forty-two".