243392013 has 16 divisors (see below), whose sum is σ = 366494400. Its totient is φ = 159600240.

The previous prime is 243392011. The next prime is 243392027. The reversal of 243392013 is 310293342.

It is a happy number.

243392013 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 243392013 - 2¹ = 243392011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243392011) 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, 72243 + ... + 75536.

It is an arithmetic number, because the mean of its divisors is an integer number (22905900).

Almost surely, 2^243392013 is an apocalyptic number.

It is an amenable number.

243392013 is a deficient number, since it is larger than the sum of its proper divisors (123102387).

243392013 is a wasteful number, since it uses less digits than its factorization.

243392013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147849 (or 147843 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 243392013 is about 15601.0260239511. The cubic root of 243392013 is about 624.3605303756.

The spelling of 243392013 in words is "two hundred forty-three million, three hundred ninety-two thousand, thirteen".