12440315 has 8 divisors (see below), whose sum is σ = 14952768. Its totient is φ = 9936000.

The previous prime is 12440293. The next prime is 12440317. The reversal of 12440315 is 51304421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12440315 - 2⁸ = 12440059 is a prime.

It is a super-2 number, since 2×12440315² = 309522874598450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12440317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2099 + ... + 5411.

It is an arithmetic number, because the mean of its divisors is an integer number (1869096).

Almost surely, 2^12440315 is an apocalyptic number.

12440315 is a deficient number, since it is larger than the sum of its proper divisors (2512453).

12440315 is an equidigital number, since it uses as much as digits as its factorization.

12440315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 12440315 is about 3527.0830724552. The cubic root of 12440315 is about 231.7094745753.

Adding to 12440315 its reverse (51304421), we get a palindrome (63744736).

It can be divided in two parts, 12440 and 315, that multiplied together give a triangular number (3918600 = T₂₇₉₉).

The spelling of 12440315 in words is "twelve million, four hundred forty thousand, three hundred fifteen".