12442407 has 8 divisors (see below), whose sum is σ = 16696176. Its totient is φ = 8241792.

The previous prime is 12442387. The next prime is 12442411. The reversal of 12442407 is 70424421.

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

It is not a de Polignac number, because 12442407 - 2⁶ = 12442343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442427) 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, 12738 + ... + 13679.

It is an arithmetic number, because the mean of its divisors is an integer number (2087022).

Almost surely, 2^12442407 is an apocalyptic number.

12442407 is a deficient number, since it is larger than the sum of its proper divisors (4253769).

12442407 is a wasteful number, since it uses less digits than its factorization.

12442407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26577.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 12442407 is about 3527.3796223259. The cubic root of 12442407 is about 231.7224621632.

Adding to 12442407 its reverse (70424421), we get a palindrome (82866828).

The spelling of 12442407 in words is "twelve million, four hundred forty-two thousand, four hundred seven".