12405394 has 8 divisors (see below), whose sum is σ = 19208448. Its totient is φ = 6002580.

The previous prime is 12405391. The next prime is 12405403. The reversal of 12405394 is 49350421.

12405394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (12405391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99982 + ... + 100105.

It is an arithmetic number, because the mean of its divisors is an integer number (2401056).

Almost surely, 2^12405394 is an apocalyptic number.

12405394 is a deficient number, since it is larger than the sum of its proper divisors (6803054).

12405394 is a wasteful number, since it uses less digits than its factorization.

12405394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200120.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 12405394 is about 3522.1291855921. The cubic root of 12405394 is about 231.4924621286.

The spelling of 12405394 in words is "twelve million, four hundred five thousand, three hundred ninety-four".