243133430 has 16 divisors (see below), whose sum is σ = 437832864. Its totient is φ = 97210560.

The previous prime is 243133421. The next prime is 243133433. The reversal of 243133430 is 34331342.

It is a super-2 number, since 2×243133430² = 118227729567129800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243133396 and 243133405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243133433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28994 + ... + 36426.

It is an arithmetic number, because the mean of its divisors is an integer number (27364554).

Almost surely, 2^243133430 is an apocalyptic number.

243133430 is a deficient number, since it is larger than the sum of its proper divisors (194699434).

243133430 is a wasteful number, since it uses less digits than its factorization.

243133430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10711.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 243133430 is about 15592.7364500270. The cubic root of 243133430 is about 624.1393423067.

Adding to 243133430 its reverse (34331342), we get a palindrome (277464772).

The spelling of 243133430 in words is "two hundred forty-three million, one hundred thirty-three thousand, four hundred thirty".