538490 has 8 divisors (see below), whose sum is σ = 969300. Its totient is φ = 215392.

The previous prime is 538487. The next prime is 538511. The reversal of 538490 is 94835.

It can be written as a sum of positive squares in 2 ways, for example, as 491401 + 47089 = 701^2 + 217^2 .

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

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 26915 + ... + 26934.

2⁵³⁸⁴⁹⁰ is an apocalyptic number.

538490 is a deficient number, since it is larger than the sum of its proper divisors (430810).

538490 is a wasteful number, since it uses less digits than its factorization.

538490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53856.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 538490 is about 733.8187787186. The cubic root of 538490 is about 81.3565544792.

The spelling of 538490 in words is "five hundred thirty-eight thousand, four hundred ninety".