490705 has 16 divisors (see below), whose sum is σ = 653184. Its totient is φ = 352000.

The previous prime is 490697. The next prime is 490733. The reversal of 490705 is 507094.

490705 = 217² + 218² + ... + 226².

It is not a de Polignac number, because 490705 - 2³ = 490697 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 490705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1830 + ... + 2080.

It is an arithmetic number, because the mean of its divisors is an integer number (40824).

2⁴⁹⁰⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

490705 is a deficient number, since it is larger than the sum of its proper divisors (162479).

490705 is a wasteful number, since it uses less digits than its factorization.

490705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 490705 is about 700.5033904272. The cubic root of 490705 is about 78.8751432626.

Adding to 490705 its reverse (507094), we get a palindrome (997799).

It can be divided in two parts, 49070 and 5, that multiplied together give a triangular number (245350 = T₇₀₀).

The spelling of 490705 in words is "four hundred ninety thousand, seven hundred five".