242774918 has 4 divisors (see below), whose sum is σ = 364162380. Its totient is φ = 121387458.

The previous prime is 242774897. The next prime is 242774953. The reversal of 242774918 is 819477242.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60693728 + ... + 60693731.

It is an arithmetic number, because the mean of its divisors is an integer number (91040595).

Almost surely, 2^242774918 is an apocalyptic number.

242774918 is a deficient number, since it is larger than the sum of its proper divisors (121387462).

242774918 is a wasteful number, since it uses less digits than its factorization.

242774918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121387461.

The product of its digits is 225792, while the sum is 44.

The square root of 242774918 is about 15581.2360870375. The cubic root of 242774918 is about 623.8324168509.

The spelling of 242774918 in words is "two hundred forty-two million, seven hundred seventy-four thousand, nine hundred eighteen".