490521 has 8 divisors (see below), whose sum is σ = 682560. Its totient is φ = 312752.

The previous prime is 490519. The next prime is 490537. The reversal of 490521 is 125094.

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

It is a cyclic number.

It is not a de Polignac number, because 490521 - 2¹ = 490519 is a prime.

It is a super-2 number, since 2×490521² = 481221702882, which contains 22 as substring.

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

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (490541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3486 + ... + 3623.

It is an arithmetic number, because the mean of its divisors is an integer number (85320).

2⁴⁹⁰⁵²¹ is an apocalyptic number.

It is an amenable number.

490521 is a deficient number, since it is larger than the sum of its proper divisors (192039).

490521 is a wasteful number, since it uses less digits than its factorization.

490521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7135.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 490521 is about 700.3720439881. The cubic root of 490521 is about 78.8652834074.

It can be divided in two parts, 4 and 90521, that added together give a triangular number (90525 = T₄₂₅).

The spelling of 490521 in words is "four hundred ninety thousand, five hundred twenty-one".