12207280 has 40 divisors (see below), whose sum is σ = 28529424. Its totient is φ = 4857600.

The previous prime is 12207271. The next prime is 12207287. The reversal of 12207280 is 8270221.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (12207287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26250 + ... + 26710.

Almost surely, 2^12207280 is an apocalyptic number.

12207280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12207280 is an abundant number, since it is smaller than the sum of its proper divisors (16322144).

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

12207280 is a wasteful number, since it uses less digits than its factorization.

12207280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 12207280 is about 3493.8918128643. The cubic root of 12207280 is about 230.2535326486.

The spelling of 12207280 in words is "twelve million, two hundred seven thousand, two hundred eighty".