243380085 has 16 divisors (see below), whose sum is σ = 419362944. Its totient is φ = 119817792.

The previous prime is 243380069. The next prime is 243380131. The reversal of 243380085 is 580083342.

It is not a de Polignac number, because 243380085 - 2⁴ = 243380069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623857 + ... + 624246.

It is an arithmetic number, because the mean of its divisors is an integer number (26210184).

Almost surely, 2^243380085 is an apocalyptic number.

It is an amenable number.

243380085 is a deficient number, since it is larger than the sum of its proper divisors (175982859).

243380085 is a wasteful number, since it uses less digits than its factorization.

243380085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248124.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 243380085 is about 15600.6437367180. The cubic root of 243380085 is about 624.3503307885.

The spelling of 243380085 in words is "two hundred forty-three million, three hundred eighty thousand, eighty-five".