490740866 has 32 divisors (see below), whose sum is σ = 923640192. Its totient is φ = 189970560.

The previous prime is 490740863. The next prime is 490740869. The reversal of 490740866 is 668047094.

It is an interprime number because it is at equal distance from previous prime (490740863) and next prime (490740869).

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (490740863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14030 + ... + 34326.

It is an arithmetic number, because the mean of its divisors is an integer number (28863756).

Almost surely, 2^490740866 is an apocalyptic number.

490740866 is a deficient number, since it is larger than the sum of its proper divisors (432899326).

490740866 is a wasteful number, since it uses less digits than its factorization.

490740866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20474.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 490740866 is about 22152.6717576007. The cubic root of 490740866 is about 788.7706489705.

The spelling of 490740866 in words is "four hundred ninety million, seven hundred forty thousand, eight hundred sixty-six".