243423992 has 16 divisors (see below), whose sum is σ = 521622960. Its totient is φ = 104324544.

The previous prime is 243423979. The next prime is 243424009. The reversal of 243423992 is 299324342.

243423992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2173373 + ... + 2173484.

It is an arithmetic number, because the mean of its divisors is an integer number (32601435).

Almost surely, 2^243423992 is an apocalyptic number.

It is an amenable number.

243423992 is an abundant number, since it is smaller than the sum of its proper divisors (278198968).

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

243423992 is a wasteful number, since it uses less digits than its factorization.

243423992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346870 (or 4346866 counting only the distinct ones).

The product of its digits is 93312, while the sum is 38.

The square root of 243423992 is about 15602.0508908284. The cubic root of 243423992 is about 624.3878738516.

The spelling of 243423992 in words is "two hundred forty-three million, four hundred twenty-three thousand, nine hundred ninety-two".