243456406 has 4 divisors (see below), whose sum is σ = 365184612. Its totient is φ = 121728202.

The previous prime is 243456383. The next prime is 243456413. The reversal of 243456406 is 604654342.

243456406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60864100 + ... + 60864103.

It is an arithmetic number, because the mean of its divisors is an integer number (91296153).

Almost surely, 2^243456406 is an apocalyptic number.

243456406 is a deficient number, since it is larger than the sum of its proper divisors (121728206).

243456406 is a wasteful number, since it uses less digits than its factorization.

243456406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121728205.

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 243456406 is about 15603.0896299419. The cubic root of 243456406 is about 624.4155868283.

The spelling of 243456406 in words is "two hundred forty-three million, four hundred fifty-six thousand, four hundred six".