242076981 has 16 divisors (see below), whose sum is σ = 325817856. Its totient is φ = 159868416.

The previous prime is 242076973. The next prime is 242077027. The reversal of 242076981 is 189670242.

It is not a de Polignac number, because 242076981 - 2³ = 242076973 is a prime.

It is a super-2 number, since 2×242076981² = 117202529460148722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242076911) 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 15 ways as a sum of consecutive naturals, for example, 155101 + ... + 156653.

It is an arithmetic number, because the mean of its divisors is an integer number (20363616).

Almost surely, 2^242076981 is an apocalyptic number.

It is an amenable number.

242076981 is a deficient number, since it is larger than the sum of its proper divisors (83740875).

242076981 is a wasteful number, since it uses less digits than its factorization.

242076981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 242076981 is about 15558.8232524185. The cubic root of 242076981 is about 623.2340386954.

It can be divided in two parts, 2420 and 76981, that added together give a triangular number (79401 = T₃₉₈).

The spelling of 242076981 in words is "two hundred forty-two million, seventy-six thousand, nine hundred eighty-one".