243430550 has 24 divisors (see below), whose sum is σ = 493943832. Its totient is φ = 88520000.

The previous prime is 243430543. The next prime is 243430559. The reversal of 243430550 is 55034342.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243430559) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 220751 + ... + 221850.

It is an arithmetic number, because the mean of its divisors is an integer number (20580993).

Almost surely, 2^243430550 is an apocalyptic number.

243430550 is an abundant number, since it is smaller than the sum of its proper divisors (250513282).

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

243430550 is a wasteful number, since it uses less digits than its factorization.

243430550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442624 (or 442619 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 243430550 is about 15602.2610540908. The cubic root of 243430550 is about 624.3934809391.

Adding to 243430550 its reverse (55034342), we get a palindrome (298464892).

The spelling of 243430550 in words is "two hundred forty-three million, four hundred thirty thousand, five hundred fifty".