490741591 has 2 divisors, whose sum is σ = 490741592. Its totient is φ = 490741590.

The previous prime is 490741579. The next prime is 490741631. The reversal of 490741591 is 195147094.

It is an a-pointer prime, because the next prime (490741631) can be obtained adding 490741591 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490741591 - 2²¹ = 488644439 is a prime.

It is a super-2 number, since 2×490741591² = 481654618274422562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490741561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245370795 + 245370796.

It is an arithmetic number, because the mean of its divisors is an integer number (245370796).

Almost surely, 2^490741591 is an apocalyptic number.

490741591 is a deficient number, since it is larger than the sum of its proper divisors (1).

490741591 is an equidigital number, since it uses as much as digits as its factorization.

490741591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 490741591 is about 22152.6881213093. The cubic root of 490741591 is about 788.7710374026.

The spelling of 490741591 in words is "four hundred ninety million, seven hundred forty-one thousand, five hundred ninety-one".