12407401 has 4 divisors (see below), whose sum is σ = 12546900. Its totient is φ = 12267904.

The previous prime is 12407393. The next prime is 12407407. The reversal of 12407401 is 10470421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1010025 + 11397376 = 1005^2 + 3376^2 .

It is a cyclic number.

It is not a de Polignac number, because 12407401 - 2³ = 12407393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12407407) 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 3 ways as a sum of consecutive naturals, for example, 69616 + ... + 69793.

It is an arithmetic number, because the mean of its divisors is an integer number (3136725).

Almost surely, 2^12407401 is an apocalyptic number.

It is an amenable number.

12407401 is a deficient number, since it is larger than the sum of its proper divisors (139499).

12407401 is an equidigital number, since it uses as much as digits as its factorization.

12407401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139498.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 12407401 is about 3522.4140869580. The cubic root of 12407401 is about 231.5049454166.

Adding to 12407401 its reverse (10470421), we get a palindrome (22877822).

The spelling of 12407401 in words is "twelve million, four hundred seven thousand, four hundred one".