493394459 has 4 divisors (see below), whose sum is σ = 514846416. Its totient is φ = 471942504.

The previous prime is 493394423. The next prime is 493394483. The reversal of 493394459 is 954493394.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 493394459 - 2²⁴ = 476617243 is a prime.

It is a super-3 number, since 3×493394459³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493394159) 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, 10725944 + ... + 10725989.

It is an arithmetic number, because the mean of its divisors is an integer number (128711604).

Almost surely, 2^493394459 is an apocalyptic number.

493394459 is a deficient number, since it is larger than the sum of its proper divisors (21451957).

493394459 is a wasteful number, since it uses less digits than its factorization.

493394459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21451956.

The product of its digits is 2099520, while the sum is 50.

The square root of 493394459 is about 22212.4843050029. The cubic root of 493394459 is about 790.1898059130.

The spelling of 493394459 in words is "four hundred ninety-three million, three hundred ninety-four thousand, four hundred fifty-nine".