490406 has 16 divisors (see below), whose sum is σ = 877824. Its totient is φ = 200904.

The previous prime is 490393. The next prime is 490417. The reversal of 490406 is 604094.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a nialpdrome in base 14.

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 7 ways as a sum of consecutive naturals, for example, 440 + ... + 1083.

It is an arithmetic number, because the mean of its divisors is an integer number (54864).

2⁴⁹⁰⁴⁰⁶ is an apocalyptic number.

490406 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

490406 is a deficient number, since it is larger than the sum of its proper divisors (387418).

490406 is a wasteful number, since it uses less digits than its factorization.

490406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 490406 is about 700.2899399534. The cubic root of 490406 is about 78.8591197457.

The spelling of 490406 in words is "four hundred ninety thousand, four hundred six".