242940458 has 8 divisors (see below), whose sum is σ = 364544928. Its totient is φ = 121425484.

The previous prime is 242940443. The next prime is 242940461. The reversal of 242940458 is 854049242.

It is a happy number.

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

It is a super-2 number, since 2×242940458² = 118040132266499528, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15116 + ... + 26727.

It is an arithmetic number, because the mean of its divisors is an integer number (45568116).

Almost surely, 2^242940458 is an apocalyptic number.

242940458 is a deficient number, since it is larger than the sum of its proper divisors (121604470).

242940458 is a wasteful number, since it uses less digits than its factorization.

242940458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44748.

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 242940458 is about 15586.5473405755. The cubic root of 242940458 is about 623.9741747064.

The spelling of 242940458 in words is "two hundred forty-two million, nine hundred forty thousand, four hundred fifty-eight".