242999808 has 80 divisors (see below), whose sum is σ = 650824416. Its totient is φ = 80568320.

The previous prime is 242999773. The next prime is 242999849. The reversal of 242999808 is 808999242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431335 + ... + 431897.

Almost surely, 2^242999808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242999808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325412208).

242999808 is an abundant number, since it is smaller than the sum of its proper divisors (407824608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242999808 is an equidigital number, since it uses as much as digits as its factorization.

242999808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 242999808 is about 15588.4511097158. The cubic root of 242999808 is about 624.0249825632.

The spelling of 242999808 in words is "two hundred forty-two million, nine hundred ninety-nine thousand, eight hundred eight".