242478994860 has 144 divisors (see below), whose sum is σ = 760117542912. Its totient is φ = 62503401600.

The previous prime is 242478994847. The next prime is 242478994909. The reversal of 242478994860 is 68499874242.

242478994860 is a `hidden beast` number, since 24 + 2 + 47 + 8 + 99 + 486 + 0 = 666.

242478994860 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4924965 + ... + 4973955.

It is an arithmetic number, because the mean of its divisors is an integer number (5278594048).

Almost surely, 2^242478994860 is an apocalyptic number.

242478994860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242478994860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380058771456).

242478994860 is an abundant number, since it is smaller than the sum of its proper divisors (517638548052).

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

242478994860 is a wasteful number, since it uses less digits than its factorization.

242478994860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49924 (or 49919 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 242478994860 in words is "two hundred forty-two billion, four hundred seventy-eight million, nine hundred ninety-four thousand, eight hundred sixty".