502381 has 8 divisors (see below), whose sum is σ = 554400. Its totient is φ = 451440.

The previous prime is 502339. The next prime is 502393. The reversal of 502381 is 183205.

It is a happy number.

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

It is not a de Polignac number, because 502381 - 2¹¹ = 500333 is a prime.

It is a super-2 number, since 2×502381² = 504773338322, which contains 22 as substring.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 990 + ... + 1408.

It is an arithmetic number, because the mean of its divisors is an integer number (69300).

2⁵⁰²³⁸¹ is an apocalyptic number.

It is an amenable number.

502381 is a deficient number, since it is larger than the sum of its proper divisors (52019).

502381 is a wasteful number, since it uses less digits than its factorization.

502381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 502381 is about 708.7884028397. The cubic root of 502381 is about 79.4958398730.

Adding to 502381 its reverse (183205), we get a palindrome (685586).

The spelling of 502381 in words is "five hundred two thousand, three hundred eighty-one".