242420663 has 8 divisors (see below), whose sum is σ = 260198208. Its totient is φ = 225033984.

The previous prime is 242420623. The next prime is 242420669. The reversal of 242420663 is 366024242.

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 242420663 - 2¹² = 242416567 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 (242420669) 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 7 ways as a sum of consecutive naturals, for example, 96431 + ... + 98912.

It is an arithmetic number, because the mean of its divisors is an integer number (32524776).

Almost surely, 2^242420663 is an apocalyptic number.

242420663 is a deficient number, since it is larger than the sum of its proper divisors (17777545).

242420663 is a wasteful number, since it uses less digits than its factorization.

242420663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195433.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 242420663 is about 15569.8639364639. The cubic root of 242420663 is about 623.5288389065.

The spelling of 242420663 in words is "two hundred forty-two million, four hundred twenty thousand, six hundred sixty-three".