12402845 has 16 divisors (see below), whose sum is σ = 18318720. Its totient is φ = 7850304.

The previous prime is 12402811. The next prime is 12402853. The reversal of 12402845 is 54820421.

It is a happy number.

12402845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12402845 - 2⁶ = 12402781 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13175 + ... + 14084.

It is an arithmetic number, because the mean of its divisors is an integer number (1144920).

Almost surely, 2^12402845 is an apocalyptic number.

It is an amenable number.

12402845 is a deficient number, since it is larger than the sum of its proper divisors (5915875).

12402845 is a wasteful number, since it uses less digits than its factorization.

12402845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27284.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 12402845 is about 3521.7673120182. The cubic root of 12402845 is about 231.4766057276.

The spelling of 12402845 in words is "twelve million, four hundred two thousand, eight hundred forty-five".