494421 has 8 divisors (see below), whose sum is σ = 682080. Its totient is φ = 318192.

The previous prime is 494413. The next prime is 494441. The reversal of 494421 is 124494.

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

It is not a de Polignac number, because 494421 - 2³ = 494413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 494391 and 494400.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 494421.

It is not an unprimeable number, because it can be changed into a prime (494441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2755 + ... + 2928.

It is an arithmetic number, because the mean of its divisors is an integer number (85260).

2⁴⁹⁴⁴²¹ is an apocalyptic number.

It is an amenable number.

494421 is a deficient number, since it is larger than the sum of its proper divisors (187659).

494421 is a wasteful number, since it uses less digits than its factorization.

494421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715.

The product of its digits is 1152, while the sum is 24.

The square root of 494421 is about 703.1507661946. The cubic root of 494421 is about 79.0737440980.

The spelling of 494421 in words is "four hundred ninety-four thousand, four hundred twenty-one".