490240393 has 2 divisors, whose sum is σ = 490240394. Its totient is φ = 490240392.

The previous prime is 490240363. The next prime is 490240397. The reversal of 490240393 is 393042094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461906064 + 28334329 = 21492^2 + 5323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490240393 is a prime.

It is not a weakly prime, because it can be changed into another prime (490240397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245120196 + 245120197.

It is an arithmetic number, because the mean of its divisors is an integer number (245120197).

Almost surely, 2^490240393 is an apocalyptic number.

It is an amenable number.

490240393 is a deficient number, since it is larger than the sum of its proper divisors (1).

490240393 is an equidigital number, since it uses as much as digits as its factorization.

490240393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 490240393 is about 22141.3728797471. The cubic root of 490240393 is about 788.5024200456.

The spelling of 490240393 in words is "four hundred ninety million, two hundred forty thousand, three hundred ninety-three".