12620356 has 12 divisors (see below), whose sum is σ = 25240768. Its totient is φ = 5408712.

The previous prime is 12620339. The next prime is 12620359. The reversal of 12620356 is 65302621.

12620356 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12620356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225336 + ... + 225391.

Almost surely, 2^12620356 is an apocalyptic number.

It is an amenable number.

12620356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12620356 is a wasteful number, since it uses less digits than its factorization.

12620356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450738 (or 450736 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 12620356 is about 3552.5140393811. The cubic root of 12620356 is about 232.8219211929.

Adding to 12620356 its reverse (65302621), we get a palindrome (77922977).

The spelling of 12620356 in words is "twelve million, six hundred twenty thousand, three hundred fifty-six".