682438 has 4 divisors (see below), whose sum is σ = 1023660. Its totient is φ = 341218.

The previous prime is 682427. The next prime is 682439. The reversal of 682438 is 834286.

It is a happy number.

682438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682439) by changing a digit.

682438 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 as a sum of consecutive naturals, namely, 170608 + ... + 170611.

It is an arithmetic number, because the mean of its divisors is an integer number (255915).

2⁶⁸²⁴³⁸ is an apocalyptic number.

682438 is a deficient number, since it is larger than the sum of its proper divisors (341222).

682438 is a wasteful number, since it uses less digits than its factorization.

682438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341221.

The product of its digits is 9216, while the sum is 31.

The square root of 682438 is about 826.0980571337. The cubic root of 682438 is about 88.0415609469.

The spelling of 682438 in words is "six hundred eighty-two thousand, four hundred thirty-eight".