12236420 has 24 divisors (see below), whose sum is σ = 29367744. Its totient is φ = 4195296.

The previous prime is 12236401. The next prime is 12236459. The reversal of 12236420 is 2463221.

12236420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12236392 and 12236401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43562 + ... + 43841.

It is an arithmetic number, because the mean of its divisors is an integer number (1223656).

Almost surely, 2^12236420 is an apocalyptic number.

12236420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12236420 is an abundant number, since it is smaller than the sum of its proper divisors (17131324).

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

12236420 is a wasteful number, since it uses less digits than its factorization.

12236420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87419 (or 87417 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 12236420 is about 3498.0594620446. The cubic root of 12236420 is about 230.4365998072.

Adding to 12236420 its reverse (2463221), we get a palindrome (14699641).

The spelling of 12236420 in words is "twelve million, two hundred thirty-six thousand, four hundred twenty".