12420030 has 128 divisors (see below), whose sum is σ = 37324800. Its totient is φ = 2634240.

The previous prime is 12420029. The next prime is 12420041. The reversal of 12420030 is 3002421.

It is a junction number, because it is equal to n+sod(n) for n = 12419988 and 12420015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 174895 + ... + 174965.

It is an arithmetic number, because the mean of its divisors is an integer number (291600).

Almost surely, 2^12420030 is an apocalyptic number.

12420030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12420030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18662400).

12420030 is an abundant number, since it is smaller than the sum of its proper divisors (24904770).

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

12420030 is a wasteful number, since it uses less digits than its factorization.

12420030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 12420030 is about 3524.2062936213. The cubic root of 12420030 is about 231.5834653407.

Adding to 12420030 its reverse (3002421), we get a palindrome (15422451).

The spelling of 12420030 in words is "twelve million, four hundred twenty thousand, thirty".