12430405 has 8 divisors (see below), whose sum is σ = 16063992. Its totient is φ = 9179328.

The previous prime is 12430403. The next prime is 12430423. The reversal of 12430405 is 50403421.

It can be written as a sum of positive squares in 4 ways, for example, as 1454436 + 10975969 = 1206^2 + 3313^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12430405 - 2¹ = 12430403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12430403) 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 7 ways as a sum of consecutive naturals, for example, 95554 + ... + 95683.

It is an arithmetic number, because the mean of its divisors is an integer number (2007999).

Almost surely, 2^12430405 is an apocalyptic number.

It is an amenable number.

12430405 is a deficient number, since it is larger than the sum of its proper divisors (3633587).

12430405 is a wasteful number, since it uses less digits than its factorization.

12430405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191255.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12430405 is about 3525.6779489908. The cubic root of 12430405 is about 231.6479313616.

Adding to 12430405 its reverse (50403421), we get a palindrome (62833826).

The spelling of 12430405 in words is "twelve million, four hundred thirty thousand, four hundred five".