493490 has 16 divisors (see below), whose sum is σ = 903960. Its totient is φ = 193920.

The previous prime is 493481. The next prime is 493523. The reversal of 493490 is 94394.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 358801 + 134689 = 599^2 + 367^2 .

It is a Curzon number.

It is a nialpdrome in base 14.

It is an unprimeable number.

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, 206 + ... + 1014.

2⁴⁹³⁴⁹⁰ is an apocalyptic number.

493490 is a deficient number, since it is larger than the sum of its proper divisors (410470).

493490 is a wasteful number, since it uses less digits than its factorization.

493490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 493490 is about 702.4884340685. The cubic root of 493490 is about 79.0240806791.

The spelling of 493490 in words is "four hundred ninety-three thousand, four hundred ninety".