12303420 has 72 divisors (see below), whose sum is σ = 35592816. Its totient is φ = 3174912.

The previous prime is 12303419. The next prime is 12303437. The reversal of 12303420 is 2430321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12303420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168504 + ... + 168576.

Almost surely, 2^12303420 is an apocalyptic number.

12303420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12303420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17796408).

12303420 is an abundant number, since it is smaller than the sum of its proper divisors (23289396).

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

12303420 is a wasteful number, since it uses less digits than its factorization.

12303420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 12303420 is about 3507.6231268482. The cubic root of 12303420 is about 230.8564164584.

Adding to 12303420 its reverse (2430321), we get a palindrome (14733741).

The spelling of 12303420 in words is "twelve million, three hundred three thousand, four hundred twenty".