502123420 has 12 divisors (see below), whose sum is σ = 1054459224. Its totient is φ = 200849360.

The previous prime is 502123417. The next prime is 502123439. The reversal of 502123420 is 24321205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12553066 + ... + 12553105.

It is an arithmetic number, because the mean of its divisors is an integer number (87871602).

Almost surely, 2^502123420 is an apocalyptic number.

It is an amenable number.

502123420 is an abundant number, since it is smaller than the sum of its proper divisors (552335804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

502123420 is a wasteful number, since it uses less digits than its factorization.

502123420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25106180 (or 25106178 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 502123420 is about 22408.1105852323. The cubic root of 502123420 is about 794.8225122284.

Adding to 502123420 its reverse (24321205), we get a palindrome (526444625).

It can be divided in two parts, 5021 and 23420, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 502123420 in words is "five hundred two million, one hundred twenty-three thousand, four hundred twenty".