12261760 has 192 divisors, whose sum is σ = 37674720. Its totient is φ = 3784704.

The previous prime is 12261713. The next prime is 12261791. The reversal of 12261760 is 6716221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 533109 + ... + 533131.

Almost surely, 2^12261760 is an apocalyptic number.

12261760 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 12261760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18837360).

12261760 is an abundant number, since it is smaller than the sum of its proper divisors (25412960).

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

12261760 is a wasteful number, since it uses less digits than its factorization.

12261760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12261760 is about 3501.6795969934. The cubic root of 12261760 is about 230.5955579907.

Adding to 12261760 its reverse (6716221), we get a palindrome (18977981).

The spelling of 12261760 in words is "twelve million, two hundred sixty-one thousand, seven hundred sixty".