12621960 has 256 divisors, whose sum is σ = 48384000. Its totient is φ = 2903040.

The previous prime is 12621949. The next prime is 12621967. The reversal of 12621960 is 6912621.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12621967) 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 63 ways as a sum of consecutive naturals, for example, 407145 + ... + 407175.

It is an arithmetic number, because the mean of its divisors is an integer number (189000).

Almost surely, 2^12621960 is an apocalyptic number.

12621960 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 12621960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24192000).

12621960 is an abundant number, since it is smaller than the sum of its proper divisors (35762040).

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

12621960 is a wasteful number, since it uses less digits than its factorization.

12621960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12621960 is about 3552.7397878257. The cubic root of 12621960 is about 232.8317843732.

The spelling of 12621960 in words is "twelve million, six hundred twenty-one thousand, nine hundred sixty".