12042305 has 16 divisors (see below), whose sum is σ = 15833664. Its totient is φ = 8719680.

The previous prime is 12042301. The next prime is 12042311. The reversal of 12042305 is 50324021.

It is not a de Polignac number, because 12042305 - 2² = 12042301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12042301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20222 + ... + 20808.

It is an arithmetic number, because the mean of its divisors is an integer number (989604).

Almost surely, 2^12042305 is an apocalyptic number.

It is an amenable number.

12042305 is a deficient number, since it is larger than the sum of its proper divisors (3791359).

12042305 is a wasteful number, since it uses less digits than its factorization.

12042305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 12042305 is about 3470.2024436623. The cubic root of 12042305 is about 229.2115726141.

Adding to 12042305 its reverse (50324021), we get a palindrome (62366326).

The spelling of 12042305 in words is "twelve million, forty-two thousand, three hundred five".