242889743 has 4 divisors (see below), whose sum is σ = 250724928. Its totient is φ = 235054560.

The previous prime is 242889737. The next prime is 242889797. The reversal of 242889743 is 347988242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242889743 - 2⁸ = 242889487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242889733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3917546 + ... + 3917607.

It is an arithmetic number, because the mean of its divisors is an integer number (62681232).

Almost surely, 2^242889743 is an apocalyptic number.

242889743 is a deficient number, since it is larger than the sum of its proper divisors (7835185).

242889743 is an equidigital number, since it uses as much as digits as its factorization.

242889743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7835184.

The product of its digits is 774144, while the sum is 47.

The square root of 242889743 is about 15584.9203719493. The cubic root of 242889743 is about 623.9307524721.

The spelling of 242889743 in words is "two hundred forty-two million, eight hundred eighty-nine thousand, seven hundred forty-three".