243425034 has 32 divisors (see below), whose sum is σ = 542105280. Its totient is φ = 80967600.

The previous prime is 243425033. The next prime is 243425047. The reversal of 243425034 is 430524342.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 243424989 and 243425007.

It is not an unprimeable number, because it can be changed into a prime (243425033) 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 15 ways as a sum of consecutive naturals, for example, 21924 + ... + 31104.

It is an arithmetic number, because the mean of its divisors is an integer number (16940790).

Almost surely, 2^243425034 is an apocalyptic number.

243425034 is an abundant number, since it is smaller than the sum of its proper divisors (298680246).

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

243425034 is a wasteful number, since it uses less digits than its factorization.

243425034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9683 (or 9677 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 243425034 is about 15602.0842838385. The cubic root of 243425034 is about 624.3887647679.

Adding to 243425034 its reverse (430524342), we get a palindrome (673949376).

The spelling of 243425034 in words is "two hundred forty-three million, four hundred twenty-five thousand, thirty-four".