12652420 has 72 divisors (see below), whose sum is σ = 30945600. Its totient is φ = 4308480.

The previous prime is 12652397. The next prime is 12652427. The reversal of 12652420 is 2425621.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12652391 and 12652400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12652427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63481 + ... + 63679.

It is an arithmetic number, because the mean of its divisors is an integer number (429800).

Almost surely, 2^12652420 is an apocalyptic number.

12652420 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 12652420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15472800).

12652420 is an abundant number, since it is smaller than the sum of its proper divisors (18293180).

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

12652420 is a wasteful number, since it uses less digits than its factorization.

12652420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 12652420 is about 3557.0240370287. The cubic root of 12652420 is about 233.0189280183.

The spelling of 12652420 in words is "twelve million, six hundred fifty-two thousand, four hundred twenty".