243242030 has 32 divisors (see below), whose sum is σ = 444048480. Its totient is φ = 95925760.

The previous prime is 243242017. The next prime is 243242039. The reversal of 243242030 is 30242342.

It is a junction number, because it is equal to n+sod(n) for n = 243241993 and 243242011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243242039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300266 + ... + 301074.

It is an arithmetic number, because the mean of its divisors is an integer number (13876515).

Almost surely, 2^243242030 is an apocalyptic number.

243242030 is a deficient number, since it is larger than the sum of its proper divisors (200806450).

243242030 is a wasteful number, since it uses less digits than its factorization.

243242030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 243242030 is about 15596.2184519197. The cubic root of 243242030 is about 624.2322562307.

Adding to 243242030 its reverse (30242342), we get a palindrome (273484372).

The spelling of 243242030 in words is "two hundred forty-three million, two hundred forty-two thousand, thirty".