242945693 has 6 divisors (see below), whose sum is σ = 247645242. Its totient is φ = 238250480.

The previous prime is 242945683. The next prime is 242945699. The reversal of 242945693 is 396549242.

It can be written as a sum of positive squares in 3 ways, for example, as 188156089 + 54789604 = 13717^2 + 7402^2 .

It is not a de Polignac number, because 242945693 - 2⁶ = 242945629 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 (242945699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112403 + ... + 114543.

It is an arithmetic number, because the mean of its divisors is an integer number (41274207).

Almost surely, 2^242945693 is an apocalyptic number.

It is an amenable number.

242945693 is a deficient number, since it is larger than the sum of its proper divisors (4699549).

242945693 is an frugal number, since it uses more digits than its factorization.

242945693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335 (or 2194 counting only the distinct ones).

The product of its digits is 466560, while the sum is 44.

The square root of 242945693 is about 15586.7152729496. The cubic root of 242945693 is about 623.9786565747.

The spelling of 242945693 in words is "two hundred forty-two million, nine hundred forty-five thousand, six hundred ninety-three".