490165393 has 2 divisors, whose sum is σ = 490165394. Its totient is φ = 490165392.

The previous prime is 490165391. The next prime is 490165409. The reversal of 490165393 is 393561094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448084224 + 42081169 = 21168^2 + 6487^2 .

It is a cyclic number.

It is not a de Polignac number, because 490165393 - 2¹ = 490165391 is a prime.

It is a super-2 number, since 2×490165393² = 480524224989688898, which contains 22 as substring.

Together with 490165391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (490165391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245082696 + 245082697.

It is an arithmetic number, because the mean of its divisors is an integer number (245082697).

Almost surely, 2^490165393 is an apocalyptic number.

It is an amenable number.

490165393 is a deficient number, since it is larger than the sum of its proper divisors (1).

490165393 is an equidigital number, since it uses as much as digits as its factorization.

490165393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 490165393 is about 22139.6791530501. The cubic root of 490165393 is about 788.4622080065.

The spelling of 490165393 in words is "four hundred ninety million, one hundred sixty-five thousand, three hundred ninety-three".