242741440 has 56 divisors (see below), whose sum is σ = 579912480. Its totient is φ = 96780288.

The previous prime is 242741357. The next prime is 242741441. The reversal of 242741440 is 44147242.

It is a junction number, because it is equal to n+sod(n) for n = 242741399 and 242741408.

It is not an unprimeable number, because it can be changed into a prime (242741441) 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, 113824 + ... + 115936.

It is an arithmetic number, because the mean of its divisors is an integer number (10355580).

Almost surely, 2^242741440 is an apocalyptic number.

242741440 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 242741440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289956240).

242741440 is an abundant number, since it is smaller than the sum of its proper divisors (337171040).

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

242741440 is a wasteful number, since it uses less digits than its factorization.

242741440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489 (or 2479 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 242741440 is about 15580.1617449884. The cubic root of 242741440 is about 623.8037406023.

Adding to 242741440 its reverse (44147242), we get a palindrome (286888682).

The spelling of 242741440 in words is "two hundred forty-two million, seven hundred forty-one thousand, four hundred forty".