490045 has 4 divisors (see below), whose sum is σ = 588060. Its totient is φ = 392032.

The previous prime is 490033. The next prime is 490057. The reversal of 490045 is 540094.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (490033) and next prime (490057).

It can be written as a sum of positive squares in 2 ways, for example, as 151321 + 338724 = 389^2 + 582^2 .

It is a cyclic number.

It is not a de Polignac number, because 490045 - 2¹¹ = 487997 is a prime.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 489998 and 490025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49000 + ... + 49009.

It is an arithmetic number, because the mean of its divisors is an integer number (147015).

2⁴⁹⁰⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

490045 is a deficient number, since it is larger than the sum of its proper divisors (98015).

490045 is an equidigital number, since it uses as much as digits as its factorization.

490045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98014.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 490045 is about 700.0321421192. The cubic root of 490045 is about 78.8397649455.

The spelling of 490045 in words is "four hundred ninety thousand, forty-five".