242421758 has 8 divisors (see below), whose sum is σ = 368614128. Its totient is φ = 119550384.

The previous prime is 242421731. The next prime is 242421769. The reversal of 242421758 is 857124242.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 830066 + ... + 830357.

It is an arithmetic number, because the mean of its divisors is an integer number (46076766).

Almost surely, 2^242421758 is an apocalyptic number.

242421758 is a deficient number, since it is larger than the sum of its proper divisors (126192370).

242421758 is a wasteful number, since it uses less digits than its factorization.

242421758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660498.

The product of its digits is 35840, while the sum is 35.

The square root of 242421758 is about 15569.8991005080. The cubic root of 242421758 is about 623.5297777195.

The spelling of 242421758 in words is "two hundred forty-two million, four hundred twenty-one thousand, seven hundred fifty-eight".