605742 has 8 divisors (see below), whose sum is σ = 1211496. Its totient is φ = 201912.

The previous prime is 605719. The next prime is 605779. The reversal of 605742 is 247506.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

605742 is an admirable number.

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, 50473 + ... + 50484.

It is an arithmetic number, because the mean of its divisors is an integer number (151437).

2⁶⁰⁵⁷⁴² is an apocalyptic number.

605742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

605742 is a wasteful number, since it uses less digits than its factorization.

605742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100962.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 605742 is about 778.2942888137. The cubic root of 605742 is about 84.6114677992.

The spelling of 605742 in words is "six hundred five thousand, seven hundred forty-two".