12240345 has 32 divisors (see below), whose sum is σ = 21619584. Its totient is φ = 5875200.

The previous prime is 12240343. The next prime is 12240379. The reversal of 12240345 is 54304221.

12240345 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12240345 - 2¹ = 12240343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12240341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7230 + ... + 8760.

It is an arithmetic number, because the mean of its divisors is an integer number (675612).

Almost surely, 2^12240345 is an apocalyptic number.

12240345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12240345 is a deficient number, since it is larger than the sum of its proper divisors (9379239).

12240345 is a wasteful number, since it uses less digits than its factorization.

12240345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 12240345 is about 3498.6204424030. The cubic root of 12240345 is about 230.4612357427.

Adding to 12240345 its reverse (54304221), we get a palindrome (66544566).

The spelling of 12240345 in words is "twelve million, two hundred forty thousand, three hundred forty-five".