490730 has 16 divisors (see below), whose sum is σ = 912384. Its totient is φ = 189840.

The previous prime is 490697. The next prime is 490733. The reversal of 490730 is 37094.

It is a junction number, because it is equal to n+sod(n) for n = 490696 and 490705.

It is not an unprimeable number, because it can be changed into a prime (490733) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 482 + ... + 1101.

It is an arithmetic number, because the mean of its divisors is an integer number (57024).

2⁴⁹⁰⁷³⁰ is an apocalyptic number.

490730 is a deficient number, since it is larger than the sum of its proper divisors (421654).

490730 is a wasteful number, since it uses less digits than its factorization.

490730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 490730 is about 700.5212345104. The cubic root of 490730 is about 78.8764827266.

The spelling of 490730 in words is "four hundred ninety thousand, seven hundred thirty".