243285427 has 16 divisors (see below), whose sum is σ = 313104384. Its totient is φ = 183456000.

The previous prime is 243285407. The next prime is 243285439. The reversal of 243285427 is 724582342.

243285427 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 243285427 - 2⁷ = 243285299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243285407) 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, 48574 + ... + 53347.

It is an arithmetic number, because the mean of its divisors is an integer number (19569024).

Almost surely, 2^243285427 is an apocalyptic number.

243285427 is a deficient number, since it is larger than the sum of its proper divisors (69818957).

243285427 is a wasteful number, since it uses less digits than its factorization.

243285427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101970.

The product of its digits is 107520, while the sum is 37.

The square root of 243285427 is about 15597.6096566108. The cubic root of 243285427 is about 624.2693772775.

The spelling of 243285427 in words is "two hundred forty-three million, two hundred eighty-five thousand, four hundred twenty-seven".