243010664 has 32 divisors (see below), whose sum is σ = 491864520. Its totient is φ = 111891456.

The previous prime is 243010661. The next prime is 243010679. The reversal of 243010664 is 466010342.

It can be written as a sum of positive squares in 4 ways, for example, as 135722500 + 107288164 = 11650^2 + 10358^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (243010661) by changing a digit.

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, 44972 + ... + 50084.

Almost surely, 2^243010664 is an apocalyptic number.

It is an amenable number.

243010664 is an abundant number, since it is smaller than the sum of its proper divisors (248853856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243010664 is a wasteful number, since it uses less digits than its factorization.

243010664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5589 (or 5585 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 243010664 is about 15588.7993123268. The cubic root of 243010664 is about 624.0342751828.

The spelling of 243010664 in words is "two hundred forty-three million, ten thousand, six hundred sixty-four".