493821456 has 40 divisors (see below), whose sum is σ = 1277757504. Its totient is φ = 164342400.

The previous prime is 493821451. The next prime is 493821467. The reversal of 493821456 is 654128394.

It is not an unprimeable number, because it can be changed into a prime (493821451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23106 + ... + 39006.

Almost surely, 2^493821456 is an apocalyptic number.

It is an amenable number.

493821456 is an abundant number, since it is smaller than the sum of its proper divisors (783936048).

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

493821456 is a wasteful number, since it uses less digits than its factorization.

493821456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16559 (or 16553 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 493821456 is about 22222.0938707404. The cubic root of 493821456 is about 790.4176907780.

The spelling of 493821456 in words is "four hundred ninety-three million, eight hundred twenty-one thousand, four hundred fifty-six".