242308778 has 8 divisors (see below), whose sum is σ = 364353060. Its totient is φ = 120857760.

The previous prime is 242308757. The next prime is 242308799. The reversal of 242308778 is 877803242.

It is an interprime number because it is at equal distance from previous prime (242308757) and next prime (242308799).

It can be written as a sum of positive squares in 2 ways, for example, as 235407649 + 6901129 = 15343^2 + 2627^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147293 + ... + 148928.

Almost surely, 2^242308778 is an apocalyptic number.

242308778 is a deficient number, since it is larger than the sum of its proper divisors (122044282).

242308778 is a wasteful number, since it uses less digits than its factorization.

242308778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296632.

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 242308778 is about 15566.2705231536. The cubic root of 242308778 is about 623.4328978829.

The spelling of 242308778 in words is "two hundred forty-two million, three hundred eight thousand, seven hundred seventy-eight".