12502420 has 24 divisors (see below), whose sum is σ = 30006144. Its totient is φ = 4286496.

The previous prime is 12502403. The next prime is 12502439. The reversal of 12502420 is 2420521.

It is a junction number, because it is equal to n+sod(n) for n = 12502394 and 12502403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44512 + ... + 44791.

It is an arithmetic number, because the mean of its divisors is an integer number (1250256).

Almost surely, 2^12502420 is an apocalyptic number.

12502420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12502420 is an abundant number, since it is smaller than the sum of its proper divisors (17503724).

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

12502420 is a wasteful number, since it uses less digits than its factorization.

12502420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89319 (or 89317 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 12502420 is about 3535.8761290520. The cubic root of 12502420 is about 232.0944175742.

Adding to 12502420 its reverse (2420521), we get a palindrome (14922941).

The spelling of 12502420 in words is "twelve million, five hundred two thousand, four hundred twenty".