242706637 has 16 divisors (see below), whose sum is σ = 264072960. Its totient is φ = 222189568.

The previous prime is 242706631. The next prime is 242706647. The reversal of 242706637 is 736607242.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 242706637 - 2⁷ = 242706509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242706596 and 242706605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242706631) 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, 142173 + ... + 143869.

It is an arithmetic number, because the mean of its divisors is an integer number (16504560).

Almost surely, 2^242706637 is an apocalyptic number.

It is an amenable number.

242706637 is a deficient number, since it is larger than the sum of its proper divisors (21366323).

242706637 is a wasteful number, since it uses less digits than its factorization.

242706637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940.

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 242706637 is about 15579.0448038383. The cubic root of 242706637 is about 623.7739266032.

The spelling of 242706637 in words is "two hundred forty-two million, seven hundred six thousand, six hundred thirty-seven".