243791424 has 224 divisors, whose sum is σ = 780531840. Its totient is φ = 74317824.

The previous prime is 243791423. The next prime is 243791437. The reversal of 243791424 is 424197342.

243791424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (243791423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1263072 + ... + 1263264.

Almost surely, 2^243791424 is an apocalyptic number.

243791424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243791424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390265920).

243791424 is an abundant number, since it is smaller than the sum of its proper divisors (536740416).

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

243791424 is a wasteful number, since it uses less digits than its factorization.

243791424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 258 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 243791424 is about 15613.8215693660. The cubic root of 243791424 is about 624.7018729617.

The spelling of 243791424 in words is "two hundred forty-three million, seven hundred ninety-one thousand, four hundred twenty-four".