12203420 has 24 divisors (see below), whose sum is σ = 25782624. Its totient is φ = 4851776.

The previous prime is 12203419. The next prime is 12203431. The reversal of 12203420 is 2430221.

It is a junction number, because it is equal to n+sod(n) for n = 12203395 and 12203404.

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, 1697 + ... + 5223.

It is an arithmetic number, because the mean of its divisors is an integer number (1074276).

Almost surely, 2^12203420 is an apocalyptic number.

12203420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203420 is an abundant number, since it is smaller than the sum of its proper divisors (13579204).

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

12203420 is a wasteful number, since it uses less digits than its factorization.

12203420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709 (or 3707 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 12203420 is about 3493.3393765851. The cubic root of 12203420 is about 230.2292610027.

Adding to 12203420 its reverse (2430221), we get a palindrome (14633641).

The spelling of 12203420 in words is "twelve million, two hundred three thousand, four hundred twenty".