243190664 has 32 divisors (see below), whose sum is σ = 463367520. Its totient is φ = 119638656.

The previous prime is 243190601. The next prime is 243190669. The reversal of 243190664 is 466091342.

It is not an unprimeable number, because it can be changed into a prime (243190669) 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, 203252 + ... + 204444.

It is an arithmetic number, because the mean of its divisors is an integer number (14480235).

Almost surely, 2^243190664 is an apocalyptic number.

It is an amenable number.

243190664 is a deficient number, since it is larger than the sum of its proper divisors (220176856).

243190664 is a wasteful number, since it uses less digits than its factorization.

243190664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589 (or 1585 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 243190664 is about 15594.5716196374. The cubic root of 243190664 is about 624.1883129322.

The spelling of 243190664 in words is "two hundred forty-three million, one hundred ninety thousand, six hundred sixty-four".