12440414 has 12 divisors (see below), whose sum is σ = 21707424. Its totient is φ = 5331564.

The previous prime is 12440411. The next prime is 12440423. The reversal of 12440414 is 41404421.

12440414 = 148² + 149² + ... + 343².

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63374 + ... + 63569.

It is an arithmetic number, because the mean of its divisors is an integer number (1808952).

Almost surely, 2^12440414 is an apocalyptic number.

12440414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12440414 is a deficient number, since it is larger than the sum of its proper divisors (9267010).

12440414 is a wasteful number, since it uses less digits than its factorization.

12440414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126959 (or 126952 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 12440414 is about 3527.0971066870. The cubic root of 12440414 is about 231.7100892215.

Adding to 12440414 its reverse (41404421), we get a palindrome (53844835).

The spelling of 12440414 in words is "twelve million, four hundred forty thousand, four hundred fourteen".