243013992 has 64 divisors (see below), whose sum is σ = 659527680. Its totient is φ = 74172672.

The previous prime is 243013961. The next prime is 243013999. The reversal of 243013992 is 299310342.

243013992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (243013999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36558 + ... + 42690.

It is an arithmetic number, because the mean of its divisors is an integer number (10305120).

Almost surely, 2^243013992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243013992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329763840).

243013992 is an abundant number, since it is smaller than the sum of its proper divisors (416513688).

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

243013992 is a wasteful number, since it uses less digits than its factorization.

243013992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6282 (or 6278 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 243013992 is about 15588.9060552689. The cubic root of 243013992 is about 624.0371238597.

The spelling of 243013992 in words is "two hundred forty-three million, thirteen thousand, nine hundred ninety-two".