243412402 has 4 divisors (see below), whose sum is σ = 365118606. Its totient is φ = 121706200.

The previous prime is 243412373. The next prime is 243412423. The reversal of 243412402 is 204214342.

It is a happy number.

243412402 is digitally balanced in base 3, 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 can be written as a sum of positive squares in only one way, i.e., 188815081 + 54597321 = 13741^2 + 7389^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60853099 + ... + 60853102.

Almost surely, 2^243412402 is an apocalyptic number.

243412402 is a deficient number, since it is larger than the sum of its proper divisors (121706204).

243412402 is a wasteful number, since it uses less digits than its factorization.

243412402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121706203.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 243412402 is about 15601.6794608786. The cubic root of 243412402 is about 624.3779641596.

Adding to 243412402 its reverse (204214342), we get a palindrome (447626744).

The spelling of 243412402 in words is "two hundred forty-three million, four hundred twelve thousand, four hundred two".