243044742 has 8 divisors (see below), whose sum is σ = 486089496. Its totient is φ = 81014912.

The previous prime is 243044723. The next prime is 243044773. The reversal of 243044742 is 247440342.

It is a happy number.

243044742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

243044742 is an admirable number.

It is a super-2 number, since 2×243044742² = 118141493227693128, which contains 22 as substring.

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, 20253723 + ... + 20253734.

It is an arithmetic number, because the mean of its divisors is an integer number (60761187).

Almost surely, 2^243044742 is an apocalyptic number.

243044742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243044742 is a wasteful number, since it uses less digits than its factorization.

243044742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40507462.

The product of its (nonzero) digits is 21504, while the sum is 30.

The square root of 243044742 is about 15589.8923023862. The cubic root of 243044742 is about 624.0634437876.

The spelling of 243044742 in words is "two hundred forty-three million, forty-four thousand, seven hundred forty-two".