242885739 has 4 divisors (see below), whose sum is σ = 323847656. Its totient is φ = 161923824.

The previous prime is 242885729. The next prime is 242885743. The reversal of 242885739 is 937588242.

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

It is not a de Polignac number, because 242885739 - 2¹² = 242881643 is a prime.

It is a super-2 number, since 2×242885739² = 117986964419152242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242885729) 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, 40480954 + ... + 40480959.

It is an arithmetic number, because the mean of its divisors is an integer number (80961914).

Almost surely, 2^242885739 is an apocalyptic number.

242885739 is a deficient number, since it is larger than the sum of its proper divisors (80961917).

242885739 is an equidigital number, since it uses as much as digits as its factorization.

242885739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80961916.

The product of its digits is 967680, while the sum is 48.

The square root of 242885739 is about 15584.7919139140. The cubic root of 242885739 is about 623.9273239858.

The spelling of 242885739 in words is "two hundred forty-two million, eight hundred eighty-five thousand, seven hundred thirty-nine".