490385749 has 8 divisors (see below), whose sum is σ = 568118720. Its totient is φ = 414572256.

The previous prime is 490385747. The next prime is 490385773. The reversal of 490385749 is 947583094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 490385749 - 2¹ = 490385747 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 (490385741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479319 + ... + 480340.

It is an arithmetic number, because the mean of its divisors is an integer number (71014840).

Almost surely, 2^490385749 is an apocalyptic number.

It is an amenable number.

490385749 is a deficient number, since it is larger than the sum of its proper divisors (77732971).

490385749 is an equidigital number, since it uses as much as digits as its factorization.

490385749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959739.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 490385749 is about 22144.6550887567. The cubic root of 490385749 is about 788.5803425190.

The spelling of 490385749 in words is "four hundred ninety million, three hundred eighty-five thousand, seven hundred forty-nine".