490713489 has 18 divisors (see below), whose sum is σ = 824532930. Its totient is φ = 280407456.

The previous prime is 490713473. The next prime is 490713491. The reversal of 490713489 is 984317094.

It can be written as a sum of positive squares in only one way, i.e., 402203025 + 88510464 = 20055^2 + 9408^2 .

It is not a de Polignac number, because 490713489 - 2⁴ = 490713473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490713409) 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 17 ways as a sum of consecutive naturals, for example, 555924 + ... + 556805.

It is an arithmetic number, because the mean of its divisors is an integer number (45807385).

Almost surely, 2^490713489 is an apocalyptic number.

490713489 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

490713489 is a deficient number, since it is larger than the sum of its proper divisors (333819441).

490713489 is a wasteful number, since it uses less digits than its factorization.

490713489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112749 (or 1112739 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 490713489 is about 22152.0538325456. The cubic root of 490713489 is about 788.7559809607.

The spelling of 490713489 in words is "four hundred ninety million, seven hundred thirteen thousand, four hundred eighty-nine".