242804578 has 16 divisors (see below), whose sum is σ = 369420480. Its totient is φ = 119675376.

The previous prime is 242804567. The next prime is 242804581. The reversal of 242804578 is 875408242.

It is a self number, because there is not a number n which added to its sum of digits gives 242804578.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44601 + ... + 49747.

It is an arithmetic number, because the mean of its divisors is an integer number (23088780).

Almost surely, 2^242804578 is an apocalyptic number.

242804578 is a deficient number, since it is larger than the sum of its proper divisors (126615902).

242804578 is a wasteful number, since it uses less digits than its factorization.

242804578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5481.

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 242804578 is about 15582.1878438171. The cubic root of 242804578 is about 623.8578205131.

The spelling of 242804578 in words is "two hundred forty-two million, eight hundred four thousand, five hundred seventy-eight".