12297240 has 48 divisors (see below), whose sum is σ = 39967200. Its totient is φ = 3279168.

The previous prime is 12297227. The next prime is 12297277. The reversal of 12297240 is 4279221.

It is a super-2 number, since 2×12297240² = 302444223235200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16720 + ... + 17439.

It is an arithmetic number, because the mean of its divisors is an integer number (832650).

Almost surely, 2^12297240 is an apocalyptic number.

12297240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12297240 is an abundant number, since it is smaller than the sum of its proper divisors (27669960).

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

12297240 is a wasteful number, since it uses less digits than its factorization.

12297240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34176 (or 34169 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12297240 is about 3506.7420777696. The cubic root of 12297240 is about 230.8177569747.

The spelling of 12297240 in words is "twelve million, two hundred ninety-seven thousand, two hundred forty".