243264164 has 48 divisors (see below), whose sum is σ = 505115520. Its totient is φ = 101053440.

The previous prime is 243264143. The next prime is 243264173. The reversal of 243264164 is 461462342.

It is a self number, because there is not a number n which added to its sum of digits gives 243264164.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56852 + ... + 60980.

It is an arithmetic number, because the mean of its divisors is an integer number (10523240).

Almost surely, 2^243264164 is an apocalyptic number.

It is an amenable number.

243264164 is an abundant number, since it is smaller than the sum of its proper divisors (261851356).

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

243264164 is a wasteful number, since it uses less digits than its factorization.

243264164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260 (or 4258 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 243264164 is about 15596.9280308656. The cubic root of 243264164 is about 624.2511898249.

The spelling of 243264164 in words is "two hundred forty-three million, two hundred sixty-four thousand, one hundred sixty-four".