242540544 has 112 divisors (see below), whose sum is σ = 660562560. Its totient is φ = 79134720.

The previous prime is 242540531. The next prime is 242540629. The reversal of 242540544 is 445045242.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744827 + ... + 1744965.

It is an arithmetic number, because the mean of its divisors is an integer number (5897880).

Almost surely, 2^242540544 is an apocalyptic number.

242540544 is a gapful number since it is divisible by the number (24) 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 242540544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330281280).

242540544 is an abundant number, since it is smaller than the sum of its proper divisors (418022016).

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

242540544 is an equidigital number, since it uses as much as digits as its factorization.

242540544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 242540544 is about 15573.7132373753. The cubic root of 242540544 is about 623.6316037198.

Adding to 242540544 its reverse (445045242), we get a palindrome (687585786).

The spelling of 242540544 in words is "two hundred forty-two million, five hundred forty thousand, five hundred forty-four".