12383240 has 32 divisors (see below), whose sum is σ = 27973080. Its totient is φ = 4933632.

The previous prime is 12383237. The next prime is 12383243. The reversal of 12383240 is 4238321.

It is an interprime number because it is at equal distance from previous prime (12383237) and next prime (12383243).

It can be written as a sum of positive squares in 4 ways, for example, as 11142244 + 1240996 = 3338^2 + 1114^2 .

It is not an unprimeable number, because it can be changed into a prime (12383243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13682 + ... + 14558.

Almost surely, 2^12383240 is an apocalyptic number.

12383240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12383240 is an abundant number, since it is smaller than the sum of its proper divisors (15589840).

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

12383240 is a wasteful number, since it uses less digits than its factorization.

12383240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1237 counting only the distinct ones).

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

The square root of 12383240 is about 3518.9828075738. The cubic root of 12383240 is about 231.3545774871.

The spelling of 12383240 in words is "twelve million, three hundred eighty-three thousand, two hundred forty".