12277860 has 192 divisors, whose sum is σ = 43352064. Its totient is φ = 2534400.

The previous prime is 12277849. The next prime is 12277861. The reversal of 12277860 is 6877221.

12277860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12277861) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 299440 + ... + 299480.

It is an arithmetic number, because the mean of its divisors is an integer number (225792).

Almost surely, 2^12277860 is an apocalyptic number.

12277860 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 12277860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21676032).

12277860 is an abundant number, since it is smaller than the sum of its proper divisors (31074204).

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

12277860 is a wasteful number, since it uses less digits than its factorization.

12277860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 12277860 is about 3503.9777396553. The cubic root of 12277860 is about 230.6964397772.

The spelling of 12277860 in words is "twelve million, two hundred seventy-seven thousand, eight hundred sixty".