243426450 has 48 divisors (see below), whose sum is σ = 604666656. Its totient is φ = 64809600.

The previous prime is 243426431. The next prime is 243426473. The reversal of 243426450 is 54624342.

243426450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154165 + ... + 155735.

It is an arithmetic number, because the mean of its divisors is an integer number (12597222).

Almost surely, 2^243426450 is an apocalyptic number.

243426450 is an abundant number, since it is smaller than the sum of its proper divisors (361240206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243426450 is a wasteful number, since it uses less digits than its factorization.

243426450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619 (or 2614 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 243426450 is about 15602.1296623249. The cubic root of 243426450 is about 624.3899754525.

The spelling of 243426450 in words is "two hundred forty-three million, four hundred twenty-six thousand, four hundred fifty".