494252665 has 8 divisors (see below), whose sum is σ = 594032328. Its totient is φ = 394782720.

The previous prime is 494252659. The next prime is 494252669. The reversal of 494252665 is 566252494.

It can be written as a sum of positive squares in 4 ways, for example, as 87665769 + 406586896 = 9363^2 + 20164^2 .

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

It is not a de Polignac number, because 494252665 - 2¹⁹ = 493728377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494252669) 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, 73902 + ... + 80311.

It is an arithmetic number, because the mean of its divisors is an integer number (74254041).

Almost surely, 2^494252665 is an apocalyptic number.

It is an amenable number.

494252665 is a deficient number, since it is larger than the sum of its proper divisors (99779663).

494252665 is a wasteful number, since it uses less digits than its factorization.

494252665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154859.

The product of its digits is 518400, while the sum is 43.

The square root of 494252665 is about 22231.7940121799. The cubic root of 494252665 is about 790.6476902777.

The spelling of 494252665 in words is "four hundred ninety-four million, two hundred fifty-two thousand, six hundred sixty-five".