494938249 has 4 divisors (see below), whose sum is σ = 533010436. Its totient is φ = 456866064.

The previous prime is 494938243. The next prime is 494938259. The reversal of 494938249 is 942839494.

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 209091600 + 285846649 = 14460^2 + 16907^2 .

It is a cyclic number.

It is not a de Polignac number, because 494938249 - 2⁷ = 494938121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 494938196 and 494938205.

It is not an unprimeable number, because it can be changed into a prime (494938243) 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, 19036074 + ... + 19036099.

It is an arithmetic number, because the mean of its divisors is an integer number (133252609).

Almost surely, 2^494938249 is an apocalyptic number.

It is an amenable number.

494938249 is a deficient number, since it is larger than the sum of its proper divisors (38072187).

494938249 is a wasteful number, since it uses less digits than its factorization.

494938249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38072186.

The product of its digits is 2239488, while the sum is 52.

The square root of 494938249 is about 22247.2076674804. The cubic root of 494938249 is about 791.0130937827.

The spelling of 494938249 in words is "four hundred ninety-four million, nine hundred thirty-eight thousand, two hundred forty-nine".