242702818 has 8 divisors (see below), whose sum is σ = 365902812. Its totient is φ = 120735216.

The previous prime is 242702809. The next prime is 242702843. The reversal of 242702818 is 818207242.

It can be written as a sum of positive squares in 2 ways, for example, as 188046369 + 54656449 = 13713^2 + 7393^2 .

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

It is a super-2 number, since 2×242702818² = 117809315730282248, which contains 22 as substring.

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, 307605 + ... + 308392.

Almost surely, 2^242702818 is an apocalyptic number.

242702818 is a deficient number, since it is larger than the sum of its proper divisors (123199994).

242702818 is a wasteful number, since it uses less digits than its factorization.

242702818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616196.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 242702818 is about 15578.9222348659. The cubic root of 242702818 is about 623.7706548823.

The spelling of 242702818 in words is "two hundred forty-two million, seven hundred two thousand, eight hundred eighteen".