243354685 has 8 divisors (see below), whose sum is σ = 333743616. Its totient is φ = 166871760.

The previous prime is 243354647. The next prime is 243354703. The reversal of 243354685 is 586453342.

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

It is a de Polignac number, because none of the positive numbers 2^k-243354685 is a prime.

It is a super-2 number, since 2×243354685² = 118443005422898450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3476461 + ... + 3476530.

It is an arithmetic number, because the mean of its divisors is an integer number (41717952).

Almost surely, 2^243354685 is an apocalyptic number.

It is an amenable number.

243354685 is a deficient number, since it is larger than the sum of its proper divisors (90388931).

243354685 is an equidigital number, since it uses as much as digits as its factorization.

243354685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6953003.

The product of its digits is 345600, while the sum is 40.

The square root of 243354685 is about 15599.8296465058. The cubic root of 243354685 is about 624.3286102355.

The spelling of 243354685 in words is "two hundred forty-three million, three hundred fifty-four thousand, six hundred eighty-five".