12607220 has 24 divisors (see below), whose sum is σ = 27627264. Its totient is φ = 4823456.

The previous prime is 12607207. The next prime is 12607229. The reversal of 12607220 is 2270621.

12607220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12607220² = 317883992256800, which contains 22 as substring.

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 = 12607192 and 12607201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12607229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13244 + ... + 14163.

It is an arithmetic number, because the mean of its divisors is an integer number (1151136).

Almost surely, 2^12607220 is an apocalyptic number.

12607220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12607220 is an abundant number, since it is smaller than the sum of its proper divisors (15020044).

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

12607220 is a wasteful number, since it uses less digits than its factorization.

12607220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27439 (or 27437 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12607220 is about 3550.6647264984. The cubic root of 12607220 is about 232.7411149548.

Adding to 12607220 its reverse (2270621), we get a palindrome (14877841).

The spelling of 12607220 in words is "twelve million, six hundred seven thousand, two hundred twenty".