490365 has 24 divisors (see below), whose sum is σ = 901368. Its totient is φ = 245760.

The previous prime is 490339. The next prime is 490367. The reversal of 490365 is 563094.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 205209 + 285156 = 453^2 + 534^2 .

It is not a de Polignac number, because 490365 - 2¹¹ = 488317 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 490365.

It is not an unprimeable number, because it can be changed into a prime (490367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 445 + ... + 1085.

It is an arithmetic number, because the mean of its divisors is an integer number (37557).

2⁴⁹⁰³⁶⁵ is an apocalyptic number.

490365 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

490365 is a deficient number, since it is larger than the sum of its proper divisors (411003).

490365 is a wasteful number, since it uses less digits than its factorization.

490365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 490365 is about 700.2606657524. The cubic root of 490365 is about 78.8569220333.

The spelling of 490365 in words is "four hundred ninety thousand, three hundred sixty-five".