242643927 has 16 divisors (see below), whose sum is σ = 341055360. Its totient is φ = 153022752.

The previous prime is 242643923. The next prime is 242643937. The reversal of 242643927 is 729346242.

It is a happy number.

It is not a de Polignac number, because 242643927 - 2² = 242643923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242643923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41308 + ... + 46814.

It is an arithmetic number, because the mean of its divisors is an integer number (21315960).

Almost surely, 2^242643927 is an apocalyptic number.

242643927 is a deficient number, since it is larger than the sum of its proper divisors (98411433).

242643927 is a wasteful number, since it uses less digits than its factorization.

242643927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6302.

The product of its digits is 145152, while the sum is 39.

The square root of 242643927 is about 15577.0320343768. The cubic root of 242643927 is about 623.7201988699.

The spelling of 242643927 in words is "two hundred forty-two million, six hundred forty-three thousand, nine hundred twenty-seven".