12654720 has 192 divisors, whose sum is σ = 47338200. Its totient is φ = 3115008.

The previous prime is 12654713. The next prime is 12654721. The reversal of 12654720 is 2745621.

12654720 is a `hidden beast` number, since 1 + 2 + 654 + 7 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 207936 + 12446784 = 456^2 + 3528^2 .

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (12654721) 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, 973434 + ... + 973446.

Almost surely, 2^12654720 is an apocalyptic number.

12654720 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 12654720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23669100).

12654720 is an abundant number, since it is smaller than the sum of its proper divisors (34683480).

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

12654720 is an equidigital number, since it uses as much as digits as its factorization.

12654720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 12654720 is about 3557.3473263093. The cubic root of 12654720 is about 233.0330468210.

Subtracting from 12654720 its reverse (2745621), we obtain a palindrome (9909099).

The spelling of 12654720 in words is "twelve million, six hundred fifty-four thousand, seven hundred twenty".