243473645 has 8 divisors (see below), whose sum is σ = 296529504. Its totient is φ = 191871504.

The previous prime is 243473641. The next prime is 243473683. The reversal of 243473645 is 546374342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243473645 - 2² = 243473641 is a prime.

It is a super-3 number, since 3×243473645³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 243473599 and 243473608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243473641) 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, 363059 + ... + 363728.

It is an arithmetic number, because the mean of its divisors is an integer number (37066188).

Almost surely, 2^243473645 is an apocalyptic number.

It is an amenable number.

243473645 is a deficient number, since it is larger than the sum of its proper divisors (53055859).

243473645 is an equidigital number, since it uses as much as digits as its factorization.

243473645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726859.

The product of its digits is 241920, while the sum is 38.

The square root of 243473645 is about 15603.6420428053. The cubic root of 243473645 is about 624.4303246431.

The spelling of 243473645 in words is "two hundred forty-three million, four hundred seventy-three thousand, six hundred forty-five".