12240263 has 8 divisors (see below), whose sum is σ = 14330400. Its totient is φ = 10235520.
The previous prime is 12240227. The next prime is 12240271. The reversal of 12240263 is 36204221.
12240263 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12240263 - 212 = 12236167 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12240203) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21038 + ... + 21611.
It is an arithmetic number, because the mean of its divisors is an integer number (1791300).
Almost surely, 212240263 is an apocalyptic number.
12240263 is a deficient number, since it is larger than the sum of its proper divisors (2090137).
12240263 is an equidigital number, since it uses as much as digits as its factorization.
12240263 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42697.
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 12240263 is about 3498.6087234785. The cubic root of 12240263 is about 230.4607211096.
Adding to 12240263 its reverse (36204221), we get a palindrome (48444484).
The spelling of 12240263 in words is "twelve million, two hundred forty thousand, two hundred sixty-three".
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