243675433 has 4 divisors (see below), whose sum is σ = 258009300. Its totient is φ = 229341568.

The previous prime is 243675389. The next prime is 243675473. The reversal of 243675433 is 334576342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 213072409 + 30603024 = 14597^2 + 5532^2 .

It is a cyclic number.

It is not a de Polignac number, because 243675433 - 2²⁵ = 210121001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243675392 and 243675401.

It is not an unprimeable number, because it can be changed into a prime (243675473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7166908 + ... + 7166941.

It is an arithmetic number, because the mean of its divisors is an integer number (64502325).

Almost surely, 2^243675433 is an apocalyptic number.

It is an amenable number.

243675433 is a deficient number, since it is larger than the sum of its proper divisors (14333867).

243675433 is a wasteful number, since it uses less digits than its factorization.

243675433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14333866.

The product of its digits is 181440, while the sum is 37.

The square root of 243675433 is about 15610.1067581231. The cubic root of 243675433 is about 624.6027837643.

Subtracting 243675433 from its reverse (334576342), we obtain a palindrome (90900909).

The spelling of 243675433 in words is "two hundred forty-three million, six hundred seventy-five thousand, four hundred thirty-three".