242663979 has 8 divisors (see below), whose sum is σ = 324322192. Its totient is φ = 161390880.

The previous prime is 242663977. The next prime is 242663987. The reversal of 242663979 is 979366242.

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

It is not a de Polignac number, because 242663979 - 2¹ = 242663977 is a prime.

It is a super-2 number, since 2×242663979² = 117771613408224882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242663977) 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, 94804 + ... + 97329.

It is an arithmetic number, because the mean of its divisors is an integer number (40540274).

Almost surely, 2^242663979 is an apocalyptic number.

242663979 is a deficient number, since it is larger than the sum of its proper divisors (81658213).

242663979 is a wasteful number, since it uses less digits than its factorization.

242663979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192557.

The product of its digits is 979776, while the sum is 48.

The square root of 242663979 is about 15577.6756610221. The cubic root of 242663979 is about 623.7373797284.

The spelling of 242663979 in words is "two hundred forty-two million, six hundred sixty-three thousand, nine hundred seventy-nine".