494441421 has 8 divisors (see below), whose sum is σ = 660900864. Its totient is φ = 328804800.

The previous prime is 494441411. The next prime is 494441459. The reversal of 494441421 is 124144494.

It is a happy number.

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

It is not a de Polignac number, because 494441421 - 2¹⁵ = 494408653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494441411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204301 + ... + 206706.

It is an arithmetic number, because the mean of its divisors is an integer number (82612608).

Almost surely, 2^494441421 is an apocalyptic number.

It is an amenable number.

494441421 is a deficient number, since it is larger than the sum of its proper divisors (166459443).

494441421 is a wasteful number, since it uses less digits than its factorization.

494441421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411411.

The product of its digits is 18432, while the sum is 33.

The square root of 494441421 is about 22236.0387884173. The cubic root of 494441421 is about 790.7483274023.

The spelling of 494441421 in words is "four hundred ninety-four million, four hundred forty-one thousand, four hundred twenty-one".