243424166 has 4 divisors (see below), whose sum is σ = 365136252. Its totient is φ = 121712082.

The previous prime is 243424133. The next prime is 243424189. The reversal of 243424166 is 661424342.

243424166 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, 60856040 + ... + 60856043.

It is an arithmetic number, because the mean of its divisors is an integer number (91284063).

Almost surely, 2^243424166 is an apocalyptic number.

243424166 is a deficient number, since it is larger than the sum of its proper divisors (121712086).

243424166 is a wasteful number, since it uses less digits than its factorization.

243424166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121712085.

The product of its digits is 27648, while the sum is 32.

The square root of 243424166 is about 15602.0564670174. The cubic root of 243424166 is about 624.3880226228.

The spelling of 243424166 in words is "two hundred forty-three million, four hundred twenty-four thousand, one hundred sixty-six".