502445420 has 12 divisors (see below), whose sum is σ = 1055135424. Its totient is φ = 200978160.

The previous prime is 502445417. The next prime is 502445423. The reversal of 502445420 is 24544205.

It is an interprime number because it is at equal distance from previous prime (502445417) and next prime (502445423).

It is a self number, because there is not a number n which added to its sum of digits gives 502445420.

It is not an unprimeable number, because it can be changed into a prime (502445423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12561116 + ... + 12561155.

It is an arithmetic number, because the mean of its divisors is an integer number (87927952).

Almost surely, 2^502445420 is an apocalyptic number.

It is an amenable number.

502445420 is an abundant number, since it is smaller than the sum of its proper divisors (552690004).

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

502445420 is a wasteful number, since it uses less digits than its factorization.

502445420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25122280 (or 25122278 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 502445420 is about 22415.2943322188. The cubic root of 502445420 is about 794.9923762833.

Adding to 502445420 its reverse (24544205), we get a palindrome (526989625).

The spelling of 502445420 in words is "five hundred two million, four hundred forty-five thousand, four hundred twenty".