12440514 has 16 divisors (see below), whose sum is σ = 25222752. Its totient is φ = 4089888.

The previous prime is 12440513. The next prime is 12440521. The reversal of 12440514 is 41504421.

It is a happy number.

It is a super-3 number, since 3×12440514³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12440513) 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, 13764 + ... + 14639.

It is an arithmetic number, because the mean of its divisors is an integer number (1576422).

Almost surely, 2^12440514 is an apocalyptic number.

12440514 is an abundant number, since it is smaller than the sum of its proper divisors (12782238).

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

12440514 is a wasteful number, since it uses less digits than its factorization.

12440514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28481.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 12440514 is about 3527.1112826221. Note that the first 3 decimals coincide. The cubic root of 12440514 is about 231.7107100730.

Adding to 12440514 its reverse (41504421), we get a palindrome (53944935).

The spelling of 12440514 in words is "twelve million, four hundred forty thousand, five hundred fourteen".