494383493 has 4 divisors (see below), whose sum is σ = 494464620. Its totient is φ = 494302368.

The previous prime is 494383471. The next prime is 494383531. The reversal of 494383493 is 394383494.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 129458884 + 364924609 = 11378^2 + 19103^2 .

It is a cyclic number.

It is not a de Polignac number, because 494383493 - 2⁸ = 494383237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494383433) 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 3 ways as a sum of consecutive naturals, for example, 30608 + ... + 43881.

It is an arithmetic number, because the mean of its divisors is an integer number (123616155).

Almost surely, 2^494383493 is an apocalyptic number.

It is an amenable number.

494383493 is a deficient number, since it is larger than the sum of its proper divisors (81127).

494383493 is an equidigital number, since it uses as much as digits as its factorization.

494383493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81126.

The product of its digits is 1119744, while the sum is 47.

The square root of 494383493 is about 22234.7361801304. The cubic root of 494383493 is about 790.7174452417.

Subtracting from 494383493 its reverse (394383494), we obtain a palindrome (99999999).

The spelling of 494383493 in words is "four hundred ninety-four million, three hundred eighty-three thousand, four hundred ninety-three".