242081278 has 8 divisors (see below), whose sum is σ = 364071168. Its totient is φ = 120724224.

The previous prime is 242081267. The next prime is 242081291. The reversal of 242081278 is 872180242.

242081278 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×242081278² = 117206690316226568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157251 + ... + 158782.

It is an arithmetic number, because the mean of its divisors is an integer number (45508896).

Almost surely, 2^242081278 is an apocalyptic number.

242081278 is a deficient number, since it is larger than the sum of its proper divisors (121989890).

242081278 is a wasteful number, since it uses less digits than its factorization.

242081278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316418.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 242081278 is about 15558.9613406551. The cubic root of 242081278 is about 623.2377262562.

The spelling of 242081278 in words is "two hundred forty-two million, eighty-one thousand, two hundred seventy-eight".