243291364 has 12 divisors (see below), whose sum is σ = 434818944. Its totient is φ = 119057384.

The previous prime is 243291337. The next prime is 243291431. The reversal of 243291364 is 463192342.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646864 + ... + 647239.

It is an arithmetic number, because the mean of its divisors is an integer number (36234912).

Almost surely, 2^243291364 is an apocalyptic number.

It is an amenable number.

243291364 is a deficient number, since it is larger than the sum of its proper divisors (191527580).

243291364 is a wasteful number, since it uses less digits than its factorization.

243291364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294154 (or 1294152 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The square root of 243291364 is about 15597.7999730731. The cubic root of 243291364 is about 624.2744553418.

The spelling of 243291364 in words is "two hundred forty-three million, two hundred ninety-one thousand, three hundred sixty-four".