490000071 has 16 divisors (see below), whose sum is σ = 713582208. Its totient is φ = 296613600.

The previous prime is 490000057. The next prime is 490000081. The reversal of 490000071 is 170000094.

It is not a de Polignac number, because 490000071 - 2²³ = 481611463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20476 + ... + 37406.

It is an arithmetic number, because the mean of its divisors is an integer number (44598888).

Almost surely, 2^490000071 is an apocalyptic number.

490000071 is a deficient number, since it is larger than the sum of its proper divisors (223582137).

490000071 is a wasteful number, since it uses less digits than its factorization.

490000071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17822.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 490000071 is about 22135.9452249051. The cubic root of 490000071 is about 788.3735543884.

The spelling of 490000071 in words is "four hundred ninety million, seventy-one", and thus it is an aban number.