242666363 has 4 divisors (see below), whose sum is σ = 242806080. Its totient is φ = 242526648.

The previous prime is 242666341. The next prime is 242666377. The reversal of 242666363 is 363666242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 363666242 = 2 ⋅181833121.

It is a cyclic number.

It is not a de Polignac number, because 242666363 - 2⁶ = 242666299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242666323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67220 + ... + 70737.

It is an arithmetic number, because the mean of its divisors is an integer number (60701520).

Almost surely, 2^242666363 is an apocalyptic number.

242666363 is a deficient number, since it is larger than the sum of its proper divisors (139717).

242666363 is a wasteful number, since it uses less digits than its factorization.

242666363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139716.

The product of its digits is 186624, while the sum is 38.

The square root of 242666363 is about 15577.7521805940. The cubic root of 242666363 is about 623.7394223129.

The spelling of 242666363 in words is "two hundred forty-two million, six hundred sixty-six thousand, three hundred sixty-three".