12266240 has 108 divisors (see below), whose sum is σ = 34510896. Its totient is φ = 4091904.

The previous prime is 12266237. The next prime is 12266249. The reversal of 12266240 is 4266221.

It is not an unprimeable number, because it can be changed into a prime (12266249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331502 + ... + 331538.

Almost surely, 2^12266240 is an apocalyptic number.

12266240 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 12266240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17255448).

12266240 is an abundant number, since it is smaller than the sum of its proper divisors (22244656).

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

12266240 is an frugal number, since it uses more digits than its factorization.

12266240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 12266240 is about 3502.3192315950. The cubic root of 12266240 is about 230.6236383074.

The spelling of 12266240 in words is "twelve million, two hundred sixty-six thousand, two hundred forty".