242408666669 has 8 divisors (see below), whose sum is σ = 261455275032. Its totient is φ = 223419170880.

The previous prime is 242408666657. The next prime is 242408666677. The reversal of 242408666669 is 966666804242.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18154328644 + 224254338025 = 134738^2 + 473555^2 .

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 242408666669 - 2²⁰ = 242407618093 is a prime.

It is a super-2 number, since 2×242408666669² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242408668669) 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, 14269322 + ... + 14286299.

It is an arithmetic number, because the mean of its divisors is an integer number (32681909379).

Almost surely, 2^242408666669 is an apocalyptic number.

It is an amenable number.

242408666669 is a deficient number, since it is larger than the sum of its proper divisors (19046608363).

242408666669 is a wasteful number, since it uses less digits than its factorization.

242408666669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28556287.

The product of its (nonzero) digits is 35831808, while the sum is 59.

The spelling of 242408666669 in words is "two hundred forty-two billion, four hundred eight million, six hundred sixty-six thousand, six hundred sixty-nine".