243794430 has 144 divisors (see below), whose sum is σ = 710079552. Its totient is φ = 57974400.

The previous prime is 243794429. The next prime is 243794479. The reversal of 243794430 is 34497342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 664107 + ... + 664473.

It is an arithmetic number, because the mean of its divisors is an integer number (4931108).

Almost surely, 2^243794430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243794430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355039776).

243794430 is an abundant number, since it is smaller than the sum of its proper divisors (466285122).

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

243794430 is a wasteful number, since it uses less digits than its factorization.

243794430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 243794430 is about 15613.9178299362. The cubic root of 243794430 is about 624.7044405200.

The spelling of 243794430 in words is "two hundred forty-three million, seven hundred ninety-four thousand, four hundred thirty".