Adding to 390502 its reverse (205093), we get a palindrome (595595).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 390502.
It is a congruent number.
2390502 is an apocalyptic number.
390502 is a wasteful number, since it uses less digits than its factorization.
390502 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27902.
The square root of 390502 is about 624.9015922527. The cubic root of 390502 is about 73.0927700273.
The spelling of 390502 in words is "three hundred ninety thousand, five hundred two".