243765964 has 24 divisors (see below), whose sum is σ = 459980640. Its totient is φ = 112366464.

The previous prime is 243765931. The next prime is 243765971. The reversal of 243765964 is 469567342.

243765964 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47097 + ... + 52015.

It is an arithmetic number, because the mean of its divisors is an integer number (19165860).

Almost surely, 2^243765964 is an apocalyptic number.

It is an amenable number.

243765964 is a deficient number, since it is larger than the sum of its proper divisors (216214676).

243765964 is a wasteful number, since it uses less digits than its factorization.

243765964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889 (or 5887 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 46.

The square root of 243765964 is about 15613.0062447948. The cubic root of 243765964 is about 624.6801255965.

The spelling of 243765964 in words is "two hundred forty-three million, seven hundred sixty-five thousand, nine hundred sixty-four".