13230420 has 144 divisors (see below), whose sum is σ = 45386880. Its totient is φ = 2820096.

The previous prime is 13230419. The next prime is 13230457. The reversal of 13230420 is 2403231.

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 13230420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121326 + ... + 121434.

Almost surely, 2^13230420 is an apocalyptic number.

13230420 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 13230420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22693440).

13230420 is an abundant number, since it is smaller than the sum of its proper divisors (32156460).

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

13230420 is a wasteful number, since it uses less digits than its factorization.

13230420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 143 counting only the distinct ones).

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

The square root of 13230420 is about 3637.3644304634. The cubic root of 13230420 is about 236.5145576397.

Adding to 13230420 its reverse (2403231), we get a palindrome (15633651).

The spelling of 13230420 in words is "thirteen million, two hundred thirty thousand, four hundred twenty".