242118380 has 96 divisors (see below), whose sum is σ = 611229696. Its totient is φ = 78817536.

The previous prime is 242118379. The next prime is 242118391. The reversal of 242118380 is 83811242.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222197 + ... + 223283.

It is an arithmetic number, because the mean of its divisors is an integer number (6366976).

Almost surely, 2^242118380 is an apocalyptic number.

242118380 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 242118380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305614848).

242118380 is an abundant number, since it is smaller than the sum of its proper divisors (369111316).

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

242118380 is a wasteful number, since it uses less digits than its factorization.

242118380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 242118380 is about 15560.1535982136. The cubic root of 242118380 is about 623.2695643027.

The spelling of 242118380 in words is "two hundred forty-two million, one hundred eighteen thousand, three hundred eighty".