493642 has 8 divisors (see below), whose sum is σ = 754596. Its totient is φ = 242112.

The previous prime is 493627. The next prime is 493643. The reversal of 493642 is 246394.

It can be written as a sum of positive squares in 2 ways, for example, as 488601 + 5041 = 699^2 + 71^2 .

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

It is a super-4 number, since 4×493642⁴ (a number of 24 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 493642.

It is not an unprimeable number, because it can be changed into a prime (493643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2223 + ... + 2434.

2⁴⁹³⁶⁴² is an apocalyptic number.

493642 is a deficient number, since it is larger than the sum of its proper divisors (260954).

493642 is a wasteful number, since it uses less digits than its factorization.

493642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4712.

The product of its digits is 5184, while the sum is 28.

The square root of 493642 is about 702.5966125737. The cubic root of 493642 is about 79.0321932563.

The spelling of 493642 in words is "four hundred ninety-three thousand, six hundred forty-two".