242898818 has 4 divisors (see below), whose sum is σ = 364348230. Its totient is φ = 121449408.

The previous prime is 242898797. The next prime is 242898827. The reversal of 242898818 is 818898242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 818898242 = 2 ⋅409449121.

It can be written as a sum of positive squares in only one way, i.e., 235407649 + 7491169 = 15343^2 + 2737^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60724703 + ... + 60724706.

Almost surely, 2^242898818 is an apocalyptic number.

242898818 is a deficient number, since it is larger than the sum of its proper divisors (121449412).

242898818 is a wasteful number, since it uses less digits than its factorization.

242898818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121449411.

The product of its digits is 589824, while the sum is 50.

The square root of 242898818 is about 15585.2115160494. The cubic root of 242898818 is about 623.9385229402.

The spelling of 242898818 in words is "two hundred forty-two million, eight hundred ninety-eight thousand, eight hundred eighteen".