242985740 has 24 divisors (see below), whose sum is σ = 510662880. Its totient is φ = 97119488.

The previous prime is 242985739. The next prime is 242985749. The reversal of 242985740 is 47589242.

It is not an unprimeable number, because it can be changed into a prime (242985749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27284 + ... + 35076.

It is an arithmetic number, because the mean of its divisors is an integer number (21277620).

Almost surely, 2^242985740 is an apocalyptic number.

242985740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242985740 is an abundant number, since it is smaller than the sum of its proper divisors (267677140).

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

242985740 is a wasteful number, since it uses less digits than its factorization.

242985740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361 (or 9359 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 242985740 is about 15587.9998716962. Note that the first 3 decimals coincide. The cubic root of 242985740 is about 624.0129400944.

The spelling of 242985740 in words is "two hundred forty-two million, nine hundred eighty-five thousand, seven hundred forty".