12203280 has 120 divisors (see below), whose sum is σ = 43436952. Its totient is φ = 3059712.

The previous prime is 12203251. The next prime is 12203299. The reversal of 12203280 is 8230221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4717584 + 7485696 = 2172^2 + 2736^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 11742 + ... + 12738.

Almost surely, 2^12203280 is an apocalyptic number.

12203280 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 12203280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21718476).

12203280 is an abundant number, since it is smaller than the sum of its proper divisors (31233672).

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

12203280 is a wasteful number, since it uses less digits than its factorization.

12203280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 12203280 is about 3493.3193383944. The cubic root of 12203280 is about 230.2283805878.

The spelling of 12203280 in words is "twelve million, two hundred three thousand, two hundred eighty".