490506709 has 12 divisors (see below), whose sum is σ = 622461888. Its totient is φ = 382212600.

The previous prime is 490506691. The next prime is 490506713. The reversal of 490506709 is 907605094.

It is not a de Polignac number, because 490506709 - 2¹⁷ = 490375637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490506749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 454477 + ... + 455554.

It is an arithmetic number, because the mean of its divisors is an integer number (51871824).

Almost surely, 2^490506709 is an apocalyptic number.

490506709 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

490506709 is a deficient number, since it is larger than the sum of its proper divisors (131955179).

490506709 is a wasteful number, since it uses less digits than its factorization.

490506709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910056 (or 910049 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 490506709 is about 22147.3860534375. The cubic root of 490506709 is about 788.6451750423.

The spelling of 490506709 in words is "four hundred ninety million, five hundred six thousand, seven hundred nine".