242959945 has 8 divisors (see below), whose sum is σ = 299431944. Its totient is φ = 189114624.

The previous prime is 242959931. The next prime is 242959949. The reversal of 242959945 is 549959242.

It can be written as a sum of positive squares in 4 ways, for example, as 127418944 + 115541001 = 11288^2 + 10749^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 242959945 - 2⁹ = 242959433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242959949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656464 + ... + 656833.

It is an arithmetic number, because the mean of its divisors is an integer number (37428993).

Almost surely, 2^242959945 is an apocalyptic number.

It is an amenable number.

242959945 is a deficient number, since it is larger than the sum of its proper divisors (56471999).

242959945 is a wasteful number, since it uses less digits than its factorization.

242959945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313339.

The product of its digits is 1166400, while the sum is 49.

The square root of 242959945 is about 15587.1724504478. The cubic root of 242959945 is about 623.9908578885.

The spelling of 242959945 in words is "two hundred forty-two million, nine hundred fifty-nine thousand, nine hundred forty-five".